In the Kunena extension 5.0.2 through 5.0.4 for Joomla!, the forum message subject (aka…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
In the Kunena extension 5.0.2 through 5.0.4 for Joomla!, the forum message subject (aka topic subject) accepts JavaScript, leading to XSS. Six files are affected: crypsis/layouts/message/item/default.php, crypsis/layouts/message/item/top/default.php, crypsis/layouts/message/item/bottom/default.php, crypsisb3/layouts/message/item/default.php, crypsisb3/layouts/message/item/top/default.php, and crypsisb3/layouts/message/item/bottom/default.php. This is fixed in 5.0.5.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-5673
- 2026-10-03 Alias added: GHSA-ff32-69mc-6jwx
References
More Kunena vulnerabilities
- TI-2016-09057 Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. CVSS 3.1CRITICAL 9.8
- TI-2012-04112 SQL injection vulnerability in news.php in the Kunena component 1.7.2 for Joomla! allows… CVSS 2.0HIGH 7.5
- TI-2014-07395 Multiple SQL injection vulnerabilities in the Kunena component before 3.0.6 for Joomla!… CVSS 2.0MEDIUM 6.5
- TI-2019-11291 The Kunena extension before 5.1.14 for Joomla! allows XSS via BBCode. CVSS 3.1MEDIUM 5.4
- TI-2014-07396 Multiple cross-site scripting (XSS) vulnerabilities in the Kunena component before 3.0.6… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2017-5673 · CVE Program
- CVE-2017-5673 · NVD
- FIRST EPSS
- GHSA-ff32-69mc-6jwx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences