Cross-site scripting (XSS) vulnerability in the Horde Text Filter API in Horde Groupware…
Priority LOW 30CWE-79Published · Updated
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
Cross-site scripting (XSS) vulnerability in the Horde Text Filter API in Horde Groupware and Horde Groupware Webmail Edition before 5.2.16 allows remote attackers to inject arbitrary web script or HTML via crafted data:text/html content in a form (1) action or (2) xlink attribute.
Why it matters now
EPSS 0.01509 74th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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-2016-5303
- 2026-10-03 Alias added: GHSA-6mv9-x42q-f8qh
References
Patch 2
More Horde Groupware vulnerabilities
- TI-2020-06837 Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV… CVSS 3.1CRITICAL 9.8
- TI-2022-12524 Horde Groupware Webmail Edition through 5.2.22 allows a reflection injection attack… CVSS 3.1HIGH 8.0
- TI-2012-00202 Horde 3.3.12, Horde Groupware 1.2.10, and Horde Groupware Webmail Edition 1.2.10, as… CVSS 2.0HIGH 7.5
- TI-2017-05066 In Horde_Crypt before 2.7.6, as used in Horde Groupware Webmail Edition through 5.2.17… CVSS 3.0HIGH 8.8
- TI-2019-07239 Remote code execution was discovered in Horde Groupware Webmail 5.2.22 and 5.2.17. CVSS 3.1HIGH 8.8
- TI-2008-06907 Horde Kronolith H3 2.1 before 2.1.7 and 2.2 before 2.2-RC2; Nag H3 2.1 before 2.1.4 and… CVSS 2.0HIGH 10.0
Sources
- CVE-2016-5303 · CVE Program
- CVE-2016-5303 · NVD
- FIRST EPSS
- GHSA-6mv9-x42q-f8qh · 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