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CVE-2010-2479

17
FAUCET Score

CVE-2010-2479 describes a cross-site scripting (XSS) vulnerability in HTML Purifier versions prior to 4.1.1, specifically impacting Internet Explorer users, and affecting products like Mahara. This medium-complexity vulnerability allows remote attackers to inject arbitrary web script or HTML, potentially leading to information disclosure or session hijacking, but does not impact confidentiality, integrity, or availability. With a CVSS score of 4.3, there is no evidence of active exploitation, readily available exploit code, or significant community discussion surrounding this decade-old flaw.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.1.0CPE matchmatch criteria
cpe:2.3:a:htmlpurifier:htmlpurifier:*:*:*:*:*:*:*:*
<= 4.1.0CPE matchmatch criteria
cpe:2.3:a:htmlpurifier:htmlpurifier:*:*:lite:*:*:*:*:*
<= 4.1.0CPE matchmatch criteria
cpe:2.3:a:htmlpurifier:htmlpurifier:*:*:standalone:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:htmlpurifier:htmlpurifier:1.0.0:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:htmlpurifier:htmlpurifier:1.0.0:beta:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.01%
Probability of exploitation in next 30 days
EPSS Percentile
78.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0201 is in the 64th percentile among its peer group of 19,953 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: ezyang/htmlpurifierFixed in: 4.1.1

Vendor Advisories (1)

composerGHSA-6rm6-mjmh-86jqmedium

HTML Purifier Cross-site Scripting (XSS) vulnerability

May 17, 2022

References

htmlpurifier.org / news/2010/0531-4.1.1-released
Patch
repo.or.cz / w/htmlpurifier.git/commitdiff/18e538317a877a0509ae71a860429c41770da230
secunia.com / advisories/39613
Vendor Advisory
secunia.com / advisories/40431
Vendor Advisory
wiki.mahara.org / Release_Notes/1.0.15
wiki.mahara.org / Release_Notes/1.1.9
wiki.mahara.org / Release_Notes/1.2.5
securityfocus.com / bid/41259
Patch