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PatchSiren cyber security CVE debrief

CVE-2026-25688 Apache CVE debrief

CVE-2026-25688 is a MEDIUM-severity vulnerability in Apache Answer, a Q&A platform. The issue, classified as CWE-87, involves improper neutralization of alternate XSS syntax. AI-generated response content was rendered in the browser without proper sanitization, allowing malicious scripts to be executed when the content was viewed. This vulnerability affects Apache Answer through version 2.0.0 and is fixed in version 2.0.1.

Vendor
Apache
Product
Answer
CVSS
MEDIUM 6.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-10
Advisory published
2026-06-09
Advisory updated
2026-06-10

Who should care

Users of Apache Answer through version 2.0.0 should upgrade to version 2.0.1 to fix the issue.

Technical summary

The vulnerability has a CVSS score of 6.1 and is classified as MEDIUM severity. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, indicating that the vulnerability can be exploited over the network with low attack complexity and no privileges required.

Defensive priority

MEDIUM

Recommended defensive actions

  • Upgrade to version 2.0.1 of Apache Answer.

Evidence notes

The vulnerability was published on [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-25688) and detailed on [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-25688).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-25688 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-25688

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

  • CVE-2026-25688 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-25688

    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.