PatchSiren

PatchSiren cyber security CVE debrief

CVE-2025-15591 OpenText CVE debrief

A Cross-Site Scripting (XSS) vulnerability was identified in OpenText Content Management, specifically in its Forums feature. This vulnerability could allow an attacker to inject malicious code into a Forums web page. The vulnerability has a CVSS score of 5.3 and a severity of MEDIUM. Defenders should assess exposure and prioritize patching or mitigation, including verifying affected versions and applying patches or mitigations as available. The CVE record and source item provide details about the vulnerability, but do not specify exploitation or impact. It is essential to review the official advisory or CVE record to validate affected scope, severity, and vendor guidance. Confirm

Vendor
OpenText
Product
Content Management
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-06
Original CVE updated
2026-10-07
Advisory published
2026-10-06
Advisory updated
2026-10-07

Who should care

Defenders responsible for OpenText Content Management instances should assess exposure and prioritize patching or mitigation. This includes administrators, security teams, and IT personnel managing OpenText Content Management.

Why it matters

Defenders should care about CVE-2025-15591 because it is a Cross-Site Scripting (XSS) vulnerability in OpenText Content Management, which could allow attackers to inject malicious code. Affected versions require verification and patching to prevent potential compromise.

  • Potential injection of malicious code into Forums web pages
  • Possible compromise of user sessions or data
  • Required verification of affected versions and patching
  • Need for monitoring and incident response preparedness

Technical summary

The CVE record describes a Cross-Site Scripting (XSS) vulnerability in the Forums feature of OpenText Content Management Content Server. The vulnerability could allow an attacker to inject malicious code into a Forums web page. The CVSS score is 5.3, and the severity is MEDIUM.

Defensive priority

Defenders should prioritize verifying the presence of this vulnerability in their OpenText Content Management instances and apply patches or mitigations as available.

Recommended defensive actions

  • Verify the presence of OpenText Content Management in your environment
  • Check if your version of OpenText Content Management is affected (versions 20.3 to 25.2)
  • Apply patches or mitigations as available from OpenText
  • Monitor for potential malicious activity

Evidence notes

The CVE record and source item provide details about the vulnerability, including its description, CVSS score, and affected versions. However, the corpus does not provide information on exploitation or impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-15591 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-15591

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-15591 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-15591

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.