UBUNTU-CVE-2021-26929
- Source
- https://ubuntu.com/security/CVE-2021-26929
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-26929.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-26929
- Related
- Published
- 2021-02-14T04:15:00Z
- Modified
- 2024-10-15T14:08:03Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
An XSS issue was discovered in Horde Groupware Webmail Edition through 5.2.22 (where the HordeTextFilter library before 2.3.7 is used). The attacker can send a plain text e-mail message, with JavaScript encoded as a link or email that is mishandled by preProcess in Text2html.php, because bespoke use of \x00\x00\x00 and \x01\x01\x01 interferes with XSS defenses.
- References
-
- https://ubuntu.com/security/CVE-2021-26929
- https://lists.horde.org/archives/announce/2021/001298.html
- https://github.com/horde/Text_Filter/commit/c26f938854c36b981558a3b1b9b2f81403cff60e
- https://github.com/horde/Text_Filter/commit/a2f67da064d7a91440b7a2448e56a6387ab94c67
- https://www.alexbirnberg.com/horde-xss.html
- https://github.com/horde/webmail/releases
- https://www.horde.org/apps/webmail
- https://www.cve.org/CVERecord?id=CVE-2021-26929
Affected packages
Ubuntu:Pro:16.04:LTS / php-horde-text-filter
Package
- Name
- php-horde-text-filter
- Purl
- pkg:deb/ubuntu/php-horde-text-filter?arch=src?distro=esm-apps/xenial