Session / Password / Password token leak
An attacker with the ability to generate session IDs or password reset tokens, either by being able to authenticate or by exploiting OSA-2020-09, may be able to predict other users session IDs, password reset tokens and automatically generated passwords. This issue affects ((OTRS)) Community Edition: 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS; 7.0.15 and prior versions.
- Published
- Mar 27, 2020
- Updated
- Jun 16, 2026
- EPSS
- 1.5% · 72th percentile
- CWE
- CWE-331
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Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.5%
CNA vs NVD score
- NVD
- 8.1
- CNA · OTRS
- 7.3
- 0.8 point gap
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| otrs | otrs | cpe:2.3:a:otrs:otrs |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- otrs otrs5.0.0 and later · up to 5.0.41 inclusive
- otrs otrs6.0.0 and later · up to 6.0.26 inclusive
- otrs otrs7.0.0 and later · up to 7.0.15 inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (OTRS). Independent of NVD's CPE analysis and usually ahead of it.
OTRS AG ((OTRS)) Community Edition
- 5.0.41 and prior, 6.0.26 and prioraffected
OTRS AG OTRS
- 7.0.15 and prioraffected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:10 | otrs2 | before 6.0.16-2+deb10u1 | 6.0.16-2+deb10u1 |
| Debian:11 | otrs2 | before 6.0.27-1 | 6.0.27-1 |
| SUSE:Package Hub 15 | otrs | before 5.0.42-bp151.3.3.1 | 5.0.42-bp151.3.3.1 |
| SUSE:Package Hub 15 | otrs | before 5.0.42-bp151.3.3.1 | 5.0.42-bp151.3.3.1 |
| SUSE:Package Hub 15 SP1 | otrs | before 6.0.29-bp152.2.5.4 | 6.0.29-bp152.2.5.4 |
| SUSE:Package Hub 15 SP1 | otrs | before 6.0.29-bp152.2.5.4 | 6.0.29-bp152.2.5.4 |
| SUSE:Package Hub 15 SP2 | otrs | before 6.0.29-bp152.2.8.1 | 6.0.29-bp152.2.8.1 |
Same product
otrs: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-16921In OTRS 6.0.x up to and including 6.0.1, OTRS 5.0.x up to and including 5.0.24, and OTRS 4.0.x up to and including 4.0.26, an attacker who i41Plan
- CVE-2024-23790Missing file type check in avatar picture upload39Monitor
- CVE-2022-4427SQL Injection via OTRS Search API39Monitor
- CVE-2026-48188SQL Injection via MySQL Quote Method36Monitor
- CVE-2023-5422SSL Certificates are not checked for E-Mail Handling36Monitor
- CVE-2017-17476Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might a36Monitor
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:otrs2 | 6.0.27-1 · Debian:11 | Package registry (OSV) |
| opensuse:otrs | 5.0.42-bp151.3.3.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| suse:otrs | 5.0.42-bp151.3.3.1 · SUSE:Package Hub 15 | 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.
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
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- 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
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-331 · Insufficient EntropyCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; 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 helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- lists.opensuse.org/opensuse-security-announce/2020-04/msg00038.html
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00066.html
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00077.html
- lists.debian.org/debian-lts-announce/2023/08/msg00040.html
- otrs.com/release-notes/otrs-security-advisory-2020-10/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.