CVE-2014-8998

medium

Published 2014-11-20 · Modified 2026-05-06

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

—

CVSS v4 NEW

—

not yet in upstream

VIR risk

7.5

Description

lib/message.php in X7 Chat 2.0.0 through 2.0.5.1 allows remote authenticated users to execute arbitrary PHP code via a crafted HTTP header to index.php, which is processed by the preg_replace function with the eval switch.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-35183 remote php verified

Metasploit · 2014-11-06

X7 Chat 2.0.5 - 'message.php' PHP Code Execution (Metasploit)

Source code queued for fetch — refresh in a moment.

Metasploit modules

exploit_multi/http/x7chat2_php_exec rank 600

X7 Chat 2.0.5 lib/message.php preg_replace() PHP Code Execution

Source fetch failed: fetch_error — view the original via the link above.

Application impact

Vendor	Product	Versions
x7chat	x7_chat	`2.0.0`
x7chat	x7_chat	`2.0.1`
x7chat	x7_chat	`2.0.2`
x7chat	x7_chat	`2.0.3`
x7chat	x7_chat	`2.0.4`
x7chat	x7_chat	`2.0.4.1`
x7chat	x7_chat	`2.0.4.3`
x7chat	x7_chat	`2.0.4.4`
x7chat	x7_chat	`2.0.5`
x7chat	x7_chat	`2.0.5.1`

References

CWEs

CWE-94

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.