Skip to content
Fencer Vulns
high 7.2

CVE-2024-4439 in the critical feed json

WordPress Core is vulnerable to Stored Cross-Site Scripting via user display names in the Avatar block in various versions up to 6.5.2 due…

published 2024-05-03 2 y ago modified 2026-09-10 1 mo ago also BIT-wordpress-2024-4439 , BIT-wordpress-multisite-2024-4439 , EUVD-2024-44058

cvss
7.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
71.0%
EPSS 71.0% chance of exploitation in 30 days, percentile 99.4%
public exploits
0
none known, plus a Nuclei check

Summary

WordPress Core is vulnerable to Stored Cross-Site Scripting via user display names in the Avatar block in various versions up to 6.5.2 due to insufficient output escaping on the display name. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. In addition, it also makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that have the comment block present and display the comment author's avatar.

Patch / fix

  • bitnami wordpress 6.0.8, 6.1.6, 6.2.5, 6.3.4, 6.4.4, 6.5.2
  • bitnami wordpress-multisite 6.0.8, 6.1.6, 6.2.5, 6.3.4, 6.4.4, 6.5.2
  • wordpress wordpress 6.0.8, 6.1.6, 6.2.5, 6.3.4, 6.4.4, 6.5.2
  • johnpbloch wordpress-core 6.0.8, 6.1.6, 6.2.5, 6.3.4, 6.4.4, 6.5.2
  • wordpress Debian 12 6.1.9+dfsg1-0+deb12u1
  • wordpress Debian 14, Debian 13 6.5.2+dfsg1-1

debian advisories DEBIAN-CVE-2024-4439

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-4439 updated cvss 7.2

wordpress: stored cross-site scripting via user display names in the Avatar block

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

71.02% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template WordPress Core <6.5.2 - Cross-Site Scripting nuclei detection template
  • wordfence.com https://www.wordfence.com/blog/2024/04/unauthenticated-stored-cross-site-scripting-vulnerability-patched-in-wordpress-core/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
OSV 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
bitnami wordpress
>=6.0.0, <6.0.8
>=6.1.0, <6.1.6
>=6.2.0, <6.2.5
>=6.3.0, <6.3.4
>=6.4.0, <6.4.4
>=6.5.0, <6.5.2
6.0.8
6.1.6
6.2.5
6.3.4
6.4.4
6.5.2
bitnami wordpress-multisite
>=6.0.0, <6.0.8
>=6.1.0, <6.1.6
>=6.2.0, <6.2.5
>=6.3.0, <6.3.4
>=6.4.0, <6.4.4
>=6.5.0, <6.5.2
6.0.8
6.1.6
6.2.5
6.3.4
6.4.4
6.5.2

Affected products

  • WordPress Foundation WordPress
  • wordpress wordpress

Classification

Weakness
  • CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.