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Vulnerability record · CVE-2012-6554 · published 23 May 2013

CVE-2012-6554: A51dev activecollab chat module improper input validation vulnerability

AA51dev · Activecollab Chat Module

functions/html_to_text.php in the Chat module before 1.5.2 for activeCollab allows remote authenticated users to execute arbitrary PHP code via the message[message_text] parameter to chat/add_messag, which is not properly handled when executing the preg_replace function with the eval switch.

6.5 CVSS 2.0 Medium EPSS 17% · top 3.1% CWE-20 · Improper input validation
6.5CVSS 2.0 base score
17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

functions/html_to_text.php in the Chat module before 1.5.2 for activeCollab allows remote authenticated users to execute arbitrary PHP code via the message[message_text] parameter to chat/add_messag, which is not properly handled when executing the preg_replace function with the eval switch.

AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://osvdb.org/81966
http://secunia.com/advisories/49246 Vendor Advisory
http://www.activecollab.com/downloads/category/4/package/62/releases Vendor Advisory
http://www.exploit-db.com/exploits/18898 Exploit
http://www.securityfocus.com/bid/53624
https://exchange.xforce.ibmcloud.com/vulnerabilities/75741
http://osvdb.org/81966
http://secunia.com/advisories/49246 Vendor Advisory
http://www.activecollab.com/downloads/category/4/package/62/releases Vendor Advisory
http://www.exploit-db.com/exploits/18898 Exploit
http://www.securityfocus.com/bid/53624
https://exchange.xforce.ibmcloud.com/vulnerabilities/75741

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Source: NIST National Vulnerability Database (record CVE-2012-6554), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.