What’s Vulnerable › Vulnerabilities
CVE-2026-82546: Apache Roller: Stored cross-site scripting through incoming Trackback links
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-28 · updated 2026-09-30
- Weakness: CWE-79
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.
Affected products
References
- 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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