VulnerabilityDeferred

CVE-2026-80180

Stored XSS via markdown HTML processing in Apache Allura.

MEDIUM 6.1EPSS 0.20%

Does this matter?

Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.

Description

Stored XSS via markdown HTML processing in Apache Allura. This issue affects Apache Allura: from through 1.20.0. Users are recommended to upgrade to version 1.21.0, which fixes the issue.

CVSS 3.1: 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.20% probability · 10th percentile
CISA KEV: Not listed
Weakness: CWE-79
Source: security@apache.org

References

https://lists.apache.org/thread/rjo2hjhp76qhl9f3br8jq909mohvzkpq
http://www.openwall.com/lists/oss-security/2026/09/03/3

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.