CVE-2026-80180CWE-79cross-site-scripting

CVE-2026-80180

Medium · published September 4, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
17.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00263 · 17.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-04T11:17Z
References (2)
https://lists.apache.org/thread/rjo2hjhp76qhl9f3br8jq909mohvzkpq · [email protected]http://www.openwall.com/lists/oss-security/2026/09/03/3 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 05 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 04 SEP 06:50Z
    Apache Allura: Stored XSS via markdown HTML processing
    cvelistv5