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CVE-2014-8998

53
FAUCET Score

CVE-2014-8998 is a critical PHP code execution vulnerability affecting X7 Chat versions 2.0.0 through 2.0.5.1. An authenticated attacker can inject arbitrary PHP code via a crafted HTTP header to index.php, which is then executed by the preg_replace function with the eval switch in lib/message.php. This vulnerability carries a CVSS score of 6.5, indicating a network-based attack with low complexity that can lead to partial confidentiality, integrity, and availability compromise. While not on the CISA KEV catalog, a Metasploit module for exploitation exists, and its high EPSS and FAUCET scores suggest a significant risk despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.0CPE matchmatch criteria
cpe:2.3:a:x7chat:x7_chat:2.0.0:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:x7chat:x7_chat:2.0.0:a1:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:x7chat:x7_chat:2.0.0:a2:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:x7chat:x7_chat:2.0.0:a3:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:x7chat:x7_chat:2.0.0:b1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.5MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
35.90%
Probability of exploitation in next 30 days
EPSS Percentile
98.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: X7 Chat 2.0.5 lib/message.php preg_replace() PHP Code Execution · Oct 27, 2014
ExploitDB: EDB-35183 · Nov 6, 2014
This CVE's current EPSS score of 0.3590 is in the 100th percentile among its peer group of 21,951 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/128964/X7-Chat-2.0.5-lib-message.php-preg_replace-PHP-Code-Execution.html
Exploit
exchange.xforce.ibmcloud.com / vulnerabilities/98513
exploit-db.com / exploits/35183
Exploit
securityfocus.com / bid/71014