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CVE-2009-2851

24
FAUCET Score

CVE-2009-2851 describes a Cross-Site Scripting (XSS) vulnerability in the administrator interface of WordPress versions prior to 2.8.2. This flaw allows remote attackers to inject arbitrary web script or HTML through a crafted comment author URL. The vulnerability has a CVSS score of 4.3, indicating a medium severity due to its network-based attack vector and medium attack complexity, potentially leading to information disclosure or defacement. While not listed on the KEV catalog or Hot List, exploit code for this vulnerability is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.8.1CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

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
7.90%
Probability of exploitation in next 30 days
EPSS Percentile
94.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-9250 · Jul 24, 2009
This CVE's current EPSS score of 0.0790 is in the 93rd percentile among its peer group of 19,958 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, 0.0 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

Vendor Advisories (1)

redhatCVE-2009-2851Low

WordPress: XSS via unescaped HTML URLs as author comments in the admin page

Feb 20, 2009

References

bugs.gentoo.org / show_bug.cgi
Issue TrackingThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
securitytracker.com / id
Third Party AdvisoryVDB Entry
redhat.com / archives/fedora-package-announce/2009-July/msg01241.html
Mailing ListThird Party Advisory
redhat.com / archives/fedora-package-announce/2009-July/msg01253.html
Mailing ListThird Party Advisory
wordpress.org / development/2009/07/wordpress-2-8-2
PatchVendor Advisory
debian.org / security/2009/dsa-1871
Third Party Advisory
openwall.com / lists/oss-security/2009/07/21/1
Mailing ListThird Party Advisory