Insufficient URL decoding flaw in categorizing macro location
Noroxi assessment
Priority: Monitor (action score 32/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 3% (FIRST EPSS); higher than 87.5% of all records.
- Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
- Fixed version: libreoffice (Debian:10) 1:6.1.5-3+deb10u3; libreoffice (Debian:12) 1:6.3.0-1; libreoffice (Debian:8) 1:4.3.3-2+deb8u13.
Low priority for now. Upgrade to libreoffice (Debian:10) 1:6.1.5-3+deb10u3; libreoffice (Debian:12) 1:6.3.0-1; libreoffice (Debian:8) 1:4.3.3-2+deb8u13 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
LibreOffice documents can contain macros. The execution of those macros is controlled by the document security settings, typically execution of macros are blocked by default. A URL decoding flaw existed in how the urls to the macros within the document were processed and categorized, resulting in the possibility to construct a document where macro execution bypassed the security settings. The documents were correctly detected as containing macros, and prompted the user to their existence within the documents, but macros within the document were subsequently not controlled by the security settings allowing arbitrary macro execution This issue affects: LibreOffice 6.2 series versions prior to 6.2.7; LibreOffice 6.3 series versions prior to 6.3.1.
- Published
- Sep 27, 2019
- Updated
- Jun 16, 2026
- EPSS
- 3.0% · 87th percentile
- CWE
- CWE-116
Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 3.0%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| libreoffice | libreoffice | cpe:2.3:a:libreoffice:libreoffice |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- libreoffice libreoffice6.2.0 and later · before 6.2.6
- libreoffice libreoffice6.3.0 and later · before 6.3.1
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Document Fdn.). Independent of NVD's CPE analysis and usually ahead of it.
Document Foundation LibreOffice
- 6.2 series and later · before 6.2.7affected
- 6.3 series and later · before 6.3.1affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:10 | libreoffice | before 1:6.1.5-3+deb10u3 | 1:6.1.5-3+deb10u3 |
| Debian:12 | libreoffice | before 1:6.3.0-1 | 1:6.3.0-1 |
| Debian:8 | libreoffice | before 1:4.3.3-2+deb8u13 | 1:4.3.3-2+deb8u13 |
| Debian:9 | libreoffice | before 1:5.2.7-1+deb9u10 | 1:5.2.7-1+deb9u10 |
| openSUSE:Leap 15.1 | cmis-client | before 0.5.2-lp151.3.3.1 | 0.5.2-lp151.3.3.1 |
| openSUSE:Leap 15.1 | libixion | before 0.15.0-lp151.4.6.1 | 0.15.0-lp151.4.6.1 |
| openSUSE:Leap 15.1 | libmwaw | before 0.3.15-lp151.2.3.1 | 0.3.15-lp151.2.3.1 |
| openSUSE:Leap 15.1 | liborcus | before 0.15.3-lp151.3.6.1 | 0.15.3-lp151.3.6.1 |
| openSUSE:Leap 15.1 | libreoffice | before 6.3.3.2-lp151.3.9.1 | 6.3.3.2-lp151.3.9.1 |
| openSUSE:Leap 15.1 | mdds-1_5 | before 1.5.0-lp151.2.1 | 1.5.0-lp151.2.1 |
| openSUSE:Leap 15.1 | myspell-dictionaries | before 20191016-lp151.2.6.1 | 20191016-lp151.2.6.1 |
| openSUSE:Leap 15.1 | spdlog | before 0.16.3-lp151.3.3.1 | 0.16.3-lp151.3.3.1 |
| openSUSE:Tumbleweed | libreoffice | before 7.1.5.2-3.13 | 7.1.5.2-3.13 |
| Red Hat:enterprise_linux:7::client | autocorr-af | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-bg | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-ca | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-cs | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-da | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-de | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-en | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-es | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-fa | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-fi | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
| Red Hat:enterprise_linux:7::client | autocorr-fr | before 1:5.3.6.1-24.el7 | 1:5.3.6.1-24.el7 |
+96
Same product
libreoffice: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-9851LibreLogo global-event script execution62This week
- CVE-2018-16858It was found that libreoffice before versions 6.0.7 and 6.1.3 was vulnerable to a directory traversal attack which could be used to execute 60This week
- CVE-2018-10583An information disclosure vulnerability occurs when LibreOffice 6.0.3 and Apache OpenOffice Writer 4.1.5 automatically process and initiate 60This week
Published before and after this one in the same product
- ← EarlierCVE-2019-9854Sep 6, 2019 · Unsafe URL assembly flaw in allowed script location check32Monitor
- ← EarlierCVE-2019-9855Sep 6, 2019 · Windows 8.3 path equivalence handling flaw allows LibreLogo script execution40Plan
- Later →CVE-2012-5639Dec 20, 2019 · LibreOffice and OpenOffice automatically open embedded content28Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:libreoffice | 1:6.3.0-1 · Debian:12 | Package registry (OSV) |
| opensuse:cmis-client | 0.5.2-lp151.3.3.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| opensuse:libixion | 0.15.0-lp151.4.6.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| opensuse:libmwaw | 0.3.15-lp151.2.3.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| opensuse:liborcus | 0.15.3-lp151.3.6.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| opensuse:libreoffice | 6.3.3.2-lp151.3.9.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| opensuse:mdds-1_5 | 1.5.0-lp151.2.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| opensuse:myspell-dictionaries | 20191016-lp151.2.6.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| opensuse:spdlog | 0.16.3-lp151.3.3.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| red hat:autocorr-af | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-bg | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-ca | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-cs | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-da | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-de | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-en | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-es | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-fa | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-fi | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-fr | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:autocorr-ga | 1:5.3.6.1-24.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| suse:bluez | 5.13-5.20.6 · SUSE:Linux Enterprise Software Development Kit 12 SP4 | Package registry (OSV) |
| suse:cmis-client | 0.5.2-9.3.1 · SUSE:Linux Enterprise Software Development Kit 12 SP4 | Package registry (OSV) |
| suse:gperf | 3.1-19.4.1 · SUSE:Linux Enterprise Software Development Kit 12 SP4 | Package registry (OSV) |
| suse:libixion | 0.15.0-13.12.1 · SUSE:Linux Enterprise Software Development Kit 12 SP4 | Package registry (OSV) |
| suse:libmwaw | 0.3.15-7.15.1 · SUSE:Linux Enterprise Software Development Kit 12 SP4 | Package registry (OSV) |
| suse:liborcus | 0.15.3-10.15.1 · SUSE:Linux Enterprise Software Development Kit 12 SP4 | Package registry (OSV) |
| suse:libreoffice | 6.3.3.2-8.13.1 · SUSE:Linux Enterprise Workstation Extension 15 SP1 | Package registry (OSV) |
| suse:myspell-dictionaries | 20191016-16.21.1 · SUSE:Linux Enterprise Workstation Extension 12 SP4 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- Nils EmmerichERNW Research GmbH for discovering and reporting this issue
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-116 · Improper Encoding or Escaping of OutputCVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (16 more)Show less
- packetstormsecurity.com/files/156474/Open-Xchange-App-Suite-Documents-Server-Side-Request-Forgery.html
- seclists.org/fulldisclosure/2020/Feb/23
- lists.apache.org/thread.html/19c917f7c8a0d8f62142046fabfe3e2c7d6091ef1f92b99c6e79e24e%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/27339e8a9a1e9bb47fbdb939b338256d0356250a1974aaf4d774f683%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/306a374361891eb17c6cffc99c3d7be1d3152a99c839d4231edc1631%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/3a5570ca5cd14ad08e24684c71cfeff3a507f108fe3cf30ba4f58226%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/4ae0e6e52600f408d943ded079d314733ce188b04b04471464f89c4f%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/70da9481dca267405e1d79e53942264765ef3f55c9a563c3737e3926%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/7394e6b5f78a878bd0c44e9bc9adf90b8cdf49e9adc0f287145aba9b%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/9dc85d9937ad7f101047c53f78c00e8ceb135eaeff7dcf4724b46f2c%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/a5231ad45b030b54828c7b0b62a7e7d4b48481c7cb83ff628e07fa43%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/a540d1b6f9a7ebb206adba02839f654a6ee63a7b0976f559a847e49a%40%3Ccommits.openoffice.apache.org%3E
- lists.apache.org/thread.html/ca216900abd846f0220fe18b95f9f787bdbe0e87fa4eee822073cd69%40%3Ccommits.openoffice.apache.org%3E
- lists.debian.org/debian-lts-announce/2019/10/msg00005.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQGBRSD73KTDZ2MPAOL7FBWO3SQVYE5B/
- www.libreoffice.org/about-us/security/advisories/CVE-2019-9853/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.