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Vulnerability record · CVE-2026-82546 · published 28 September 2026

CVE-2026-82546: Cross-site scripting vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Apache Roller 6.1.5 allows an unauthenticated remote attacker to store a crafted comment-author URL through the incoming Trackback endpoint when a published entry accepts comments and Trackbacks. The shipped Trackback, verification and moderation defaults allow the value to be approved and rendered as an active link; a visitor who clicks the link executes script in the weblog's origin. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which removes incoming Trackback support and suppresses non-HTTP(S) comment-author links. Users unable to upgrade should disable Trackbacks and remove untrusted Trackback comments.

6.1 CVSS 3.1 Medium CWE-79 · Cross-site scripting Received
6.1CVSS 3.1 base score
—EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
28 Sep 2026Last modified by NVD

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Apache Roller 6.1.5 allows an unauthenticated remote attacker to store a crafted comment-author URL through the incoming Trackback endpoint when a published entry accepts comments and Trackbacks. The shipped Trackback, verification and moderation defaults allow the value to be approved and rendered as an active link; a visitor who clicks the link executes script in the weblog's origin. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which removes incoming Trackback support and suppresses non-HTTP(S) comment-author links. Users unable to upgrade should disable Trackbacks and remove untrusted Trackback comments.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

LinkTags
https://github.com/apache/roller/pull/178
https://lists.apache.org/thread/ddrykzvs67zpmzwsbqyfjmlydboln8x1
http://www.openwall.com/lists/oss-security/2026/09/25/21

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Source: NIST National Vulnerability Database (record CVE-2026-82546), CISA KEV, FIRST EPSS. This page is refreshed as NVD updates the record.