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CVE.org (no NVD analysis yet)· CNA apache

CVE-2026-108338: Apache Roller: Stored cross-site scripting through AtomPub entry tags

—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • No fixed version is recorded, but the references include a patch (commit or PR) link.

Low priority for now. See the fix and affected versions sections below.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Apache Roller 5.0.1 through 6.1.6 allows an authenticated user with the Author role on a weblog to store script in entry tags submitted through AtomPub. Roller's tag filter allowed HTML characters in tag names, and the bundled gaurav, fauxcoly and frontpage themes and the showEntryTags macro print tag names without escaping, so the script runs in the browser of anyone who views the weblog. This matters when weblog authors are not trusted with script (weblogAdminsUntrusted=true, the default since 6.1.4). AtomPub is disabled by default. Users are recommended to upgrade to Apache Roller 6.1.7 or later, which removes HTML characters from tag names, including names stored earlier.

Published
Nov 11, 2026
Updated
Nov 11, 2026
EPSS
—

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Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · —

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  • Not in KEV: no record of exploitation in the wild
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Noroxi analysis

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Affected systems

Is your version affected?

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Limit the impact of XSS

This is a cross-site scripting (XSS) vulnerability. A well-configured Content-Security-Policy doesn't fix it, but greatly reduces its impact. Check your site's CSP and other security headers for free.

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

  • Apache Software Foundation Apache Roller

    • 5.0.1 and later · up to and including 6.1.6affected · semver

Same product

apache software foundation: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-82384Apache Roller: Unauthenticated deserialization in the XML-RPC endpoint
    39Monitor
  • CVE-2026-82377Apache Roller: Missing weblog authorization in XML-RPC Blogger/MetaWeblog handlers
    39Monitor
  • CVE-2026-82378Apache Roller: OAuth authorization endpoint trusts request-supplied identity
    36Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-105153Nov 11, 2026 · Apache Roller: XML external entity processing in AtomPub entry parsing
    30Monitor
  • ← EarlierCVE-2026-105154Nov 11, 2026 · Apache Roller: Cross-site request forgery in Planet administration lets an attacker make the server fetch arbitrary URLs
    24Monitor
  • Later →CVE-2026-111824Nov 11, 2026 · Apache Roller: Stored cross-site scripting through custom-theme resource URLs
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-8238244 days apartApache Roller: Reflected cross-site scripting in the frontpage directory parameter
    24Monitor
  • CVE-2026-8254644 days apartApache Roller: Stored cross-site scripting through incoming Trackback links
    24Monitor
  • CVE-2026-8650744 days apartApache Roller: Stored XSS in comment moderation via comment author URL
    24Monitor
  • CVE-2026-9120444 days apartApache Roller: Stored javascript: URI in HTML comments
    24Monitor
  • CVE-2026-9120644 days apartApache Roller: Reflected XSS in the optional LDAP comment authenticator
    24Monitor
  • CVE-2026-1184130 days apartApache Roller: Stored cross-site scripting through imported blogroll links
    21Monitor

Not on record for this CVE: EPSS history · public bounty program.

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

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References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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