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VulnerabilityPublished Updated

CVE-2026-82546: Apache Roller · Cross-site Scripting

Affects Apache RollerSource CVE Database V5

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Not known to be exploited · CVSS 6.1 Medium · fixed in 6.1.6 : update Apache Roller when convenient.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 6.1.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Apache Software FoundationApache RollerAffected
  • =6.1.5
Fixed in–
GitHubApache Rollerpkg:github/Apache RollerOther threatsAffected
  • =6.1.5
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in Apache Roller 6.1.6 and later, which removes incoming Trackback support and suppresses non-HTTP(S) comment-author links. Users are strongly recommended to upgrade to these versions. For users unable to upgrade immediately, it is advised to disable Trackbacks and remove any untrusted Trackback comments to mitigate the risk.

Description

CVE-2026-82546 is a cross-site scripting (XSS) vulnerability in Apache Roller 6.1.5. It allows an unauthenticated remote attacker to store a crafted comment-author URL via the Trackback endpoint when comments and Trackbacks are enabled on a published entry. The default settings permit the malicious URL to be approved and rendered as an active link, enabling script execution in the context of the weblog's origin. Apache Roller 6.1.6 and later remove Trackback support and suppress non-HTTP(S) comment-author links to mitigate this issue. Users unable to upgrade should disable Trackbacks and remove untrusted Trackback comments.

References

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