CVE-2016-5303 json
Cross-site scripting (XSS) vulnerability in the Horde Text Filter API in Horde Groupware and Horde Groupware Webmail Edition before 5.2.16…
published 2016-12-20 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-6254
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
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.
Patch / fix
- php-horde-text-filter Debian 12 2.3.5-1
debian advisories DEBIAN-CVE-2016-5303
- github.com/horde/horde@30d5506 commit
- github.com/horde/horde@4d8176d commit
Exploit prediction
1.51% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/horde/horde/commit/30d5506c20d26efbb9942fbdc6f981a0bd333b97
patch, vendor-advisory
-
github.com
/horde/horde/commit/4d8176d1e9ef5cbd2b3fcacd9b9a4c8e482fb424
patch, vendor-advisory
-
marc.info
/?l=horde-announce&m=147319066126665&w=2
mailing-list, release-notes, third-party-advisory
-
marc.info
/?l=horde-announce&m=147319089526753&w=2
mailing-list, release-notes, third-party-advisory
-
securityfocus.com
/bid/94997
vdb-entry
Sources
- CVE List CVE-2016-5303
- NVD CVE-2016-5303
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.