HOMEVULNERABILITIESCVE-2012-0209
HIGHPOC

CVE-2012-0209

CWE-94Published: September 25, 2012· Updated: Jun 16, 2026

7.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2012-0209 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2012-0209. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityP
AvailabilityP
AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected Vendors & Products

horde2 product(s)
groupwarehorde
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://dev.horde.org/h/jonah/stories/view.php?channel_id=1&id=155
PATCHhttp://lists.horde.org/archives/announce/2012/000751.html
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=790877
PATCHhttp://dev.horde.org/h/jonah/stories/view.php?channel_id=1&id=155
PATCHhttp://lists.horde.org/archives/announce/2012/000751.html
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=790877

All References (10)

→
http://dev.horde.org/h/jonah/stories/view.php?channel_id=1&id=155Exploit · Patch · Vendor Advisory
→
http://eromang.zataz.com/2012/02/15/cve-2012-0209-horde-backdoor-analysis/Exploit
→
http://lists.horde.org/archives/announce/2012/000751.htmlExploit · Patch
→
http://packetstormsecurity.org/files/109874/Horde-3.3.12-Backdoor-Arbitrary-PHP-Code-Execution.htmlExploit
→
https://bugzilla.redhat.com/show_bug.cgi?id=790877Patch
→
http://dev.horde.org/h/jonah/stories/view.php?channel_id=1&id=155Exploit · Patch · Vendor Advisory
→
http://eromang.zataz.com/2012/02/15/cve-2012-0209-horde-backdoor-analysis/Exploit
→
http://lists.horde.org/archives/announce/2012/000751.htmlExploit · Patch
→
http://packetstormsecurity.org/files/109874/Horde-3.3.12-Backdoor-Arbitrary-PHP-Code-Execution.htmlExploit
→
https://bugzilla.redhat.com/show_bug.cgi?id=790877Patch

Quick Facts

CVE IDCVE-2012-0209
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-94
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedSep 25, 2012

Related CVEs (CWE-94)

CVE-2007-1139
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CVE-2007-1093
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CVE-2014-8669
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CVE-2022-31491
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CVE-2025-53577
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CVE-2006-7181
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2012-0209 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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