CVE-2012-0209
HighPublic exploitHorde 3.3.12, Horde Groupware 1.2.10, and Horde Groupware Webmail Edition 1.2.10, as distributed by FTP between November 2011 and February 2012, contains an externally introduced modification (Trojan Horse) in templates/javascript/open_calendar.js, which allows remote attackers…
Published Sep 25, 2012 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2012-0209 is a high-severity vulnerability (CVSS 7.5 v2) affecting Groupware (Horde), Horde.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 72% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
72%
Higher than 99.4% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2012-0209 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Horde 3.3.12, Horde Groupware 1.2.10, and Horde Groupware Webmail Edition 1.2.10, as distributed by FTP between November 2011 and February 2012, contains an externally introduced modification (Trojan Horse) in templates/javascript/open_calendar.js, which allows remote attackers to execute arbitrary PHP code.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| GroupwareHorde | 1.2.10 | n/a |
| HordeHorde | 3.3.12 | n/a |
Timeline
Publicly disclosed
Sep 25, 2012
Last updated
Apr 28, 2026
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- patchhttp://dev.horde.org/h/jonah/stories/view.php?channel_id=1&id=155
- patch[horde-announce] 20120213 [SECURITY] Remote execution backdoor after server hack (CVE-2012-0209)
- patchhttps://bugzilla.redhat.com/show_bug.cgi?id=790877
- exploithttp://eromang.zataz.com/2012/02/15/cve-2012-0209-horde-backdoor-analysis/
- exploithttp://packetstormsecurity.org/files/109874/Horde-3.3.12-Backdoor-Arbitrary-PHP-Code-Execution.html
FAQ
Common Questions.
Horde 3.3.12, Horde Groupware 1.2.10, and Horde Groupware Webmail Edition 1.2.10, as distributed by FTP between November 2011 and February 2012, contains an externally introduced modification (Trojan Horse) in templates/javascript/open_calendar.js, which allows remote attackers to execute arbitrary PHP code.
Affected: Groupware (Horde) versions 1.2.10; Horde versions 3.3.12. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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