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CVE-2011-3744

17
FAUCET Score

CVE-2011-3744 describes an information disclosure vulnerability in HTML Purifier version 4.2.0, affecting the htmlpurifier and html_purifier products. An unauthenticated remote attacker can obtain sensitive installation path information by directly requesting specific .php files, which then reveal this data in error messages. With a CVSS score of 5.0 (medium severity), this vulnerability is easily exploitable over the network with low attack complexity, leading to a partial compromise of confidentiality. There is no evidence of active exploitation, nor are there any known public exploits or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.0CPE matchmatch criteria
cpe:2.3:a:htmlpurifier:html_purifier:4.2.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.37%
Probability of exploitation in next 30 days
EPSS Percentile
69.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0137 is in the 50th percentile among its peer group of 23,684 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

Vendor Advisories (1)

composerGHSA-jw86-5cjf-mv79medium

HTML Purifier allows remote attackers to obtain sensitive information

May 17, 2022

References

code.google.com / p/inspathx/source/browse/trunk/paths_vuln/%21_README
code.google.com / p/inspathx/source/browse/trunk/paths_vuln/htmlpurifier-4.2.0
Exploit
openwall.com / lists/oss-security/2011/06/27/6