kpac/script.cpp in KDE kio before 5.32 and kdelibs before 4.14.30 calls the PAC FindProxyForURL function with a full https URL (potentially
kpac/script.cpp in KDE kio before 5.32 and kdelibs before 4.14.30 calls the PAC FindProxyForURL function with a full https URL (potentially including Basic Authentication credentials, a query string, or PATH_INFO), which allows remote attackers to obtain sensitive information via a crafted PAC file.
- Published
- Mar 2, 2017
- Updated
- Jun 16, 2026
- EPSS
- 0.9% · 57th percentile
- CWE
- CWE-319
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Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.9%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- kde kdelibsup to 4.14.29 inclusive
- kde kioup to 5.31 inclusive
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | kio | before 5.28.0-2 | 5.28.0-2 |
| Debian:7 | kde4libs | before 4:4.8.4-4+deb7u3 | 4:4.8.4-4+deb7u3 |
| Debian:8 | kde4libs | before 4:4.14.2-5+deb8u2 | 4:4.14.2-5+deb8u2 |
| SUSE:Package Hub 12 SP1 | kdelibs4 | before 4.14.25-5.3 | 4.14.25-5.3 |
| SUSE:Package Hub 12 SP1 | kdelibs4-apidocs | before 4.14.25-5.3 | 4.14.25-5.3 |
| SUSE:Package Hub 12 SP1 | kio | before 5.26.0-5.1 | 5.26.0-5.1 |
Same product
kde: all recordsOther highest-scoring records for the same primary product.
- CVE-2004-1165Konqueror 3.3.1 allows remote attackers to execute arbitrary FTP commands via an ftp:// URL that contains a URL-encoded newline ("%0a") befo31Monitor
- CVE-2009-2702KDE KSSL in kdelibs 3.5.4, 4.2.4, and 4.3 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field o30Monitor
- CVE-2015-7543aRts 1.5.10 and kdelibs3 3.5.10 and earlier do not properly create temporary directories, which allows local users to hijack the IPC by pre-28Monitor
- CVE-2013-2074kioslave/http/http.cpp in KIO in kdelibs 4.10.3 and earlier allows attackers to discover credentials via a crafted request that triggers an 21Monitor
- CVE-2014-3494kio/usernotificationhandler.cpp in the POP3 kioslave in kdelibs 4.10.95 before 4.13.3 does not properly generate warning notifications, whic17Monitor
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:kde4libs | 4:4.8.4-4+deb7u3 · Debian:7 | Package registry (OSV) |
| debian:kio | 5.28.0-2 · Debian:12 | Package registry (OSV) |
| suse:kdelibs4 | 4.14.25-5.3 · SUSE:Package Hub 12 SP1 | Package registry (OSV) |
| suse:kdelibs4-apidocs | 4.14.25-5.3 · SUSE:Package Hub 12 SP1 | Package registry (OSV) |
| suse:kio | 5.26.0-5.1 · SUSE:Package Hub 12 SP1 | 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.
No credits in the CNA record.
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
- none
- Availability
- none
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-319 · Cleartext Transmission of Sensitive InformationCVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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.
Attack patterns (CAPEC)
ATT&CK techniques
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.debian.org/security/2017/dsa-3849
- www.securityfocus.com/bid/96515
- www.kde.org/info/security/advisory-20170228-1.txt
Vendor advisories and official records. Exploit/PoC links are deliberately left out.