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.
CVE-2024-4439
Score elevated to 8.5 because EPSS predicts 71% probability of exploitation within the next 30 days (top 0.7% of all CVEs). NVD baseline CVSS 7.2 retained for reference. Confidence: see factors.
- High exploitation likelihood — EPSS 71%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.2
- EG Score
- 8.5(high)
- EG Risk
- 82(Track)EG Risk 82/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity85% × 45%Exploitation71% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 99.3%
- KEV
- Not listed
Published
May 3, 2024
Last Modified
January 5, 2026
References (10)
- security@wordfencehttps://core.trac.wordpress.org/changeset/57951/branches/6.4/src/wp-includes/blocks/avatar.php
- security@wordfencehttps://core.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=57950%40%2F&new=57950%40%2F&sfp_email=&sfph_mail=#file3
- security@wordfencehttps://wordpress.org/news/2024/04/wordpress-6-5-2-maintenance-and-security-release/
- security@wordfencehttps://www.wordfence.com/blog/2024/04/unauthenticated-stored-cross-site-scripting-vulnerability-patched-in-wordpress-core/
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/e363c09a-4381-4b3a-951c-9a0ff5669016?source=cve
- af854a3a-2127-422b-91ae-364da2661108https://core.trac.wordpress.org/changeset/57951/branches/6.4/src/wp-includes/blocks/avatar.php
- af854a3a-2127-422b-91ae-364da2661108https://core.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=57950%40%2F&new=57950%40%2F&sfp_email=&sfph_mail=#file3
- af854a3a-2127-422b-91ae-364da2661108https://wordpress.org/news/2024/04/wordpress-6-5-2-maintenance-and-security-release/
- af854a3a-2127-422b-91ae-364da2661108https://www.wordfence.com/blog/2024/04/unauthenticated-stored-cross-site-scripting-vulnerability-patched-in-wordpress-core/
- af854a3a-2127-422b-91ae-364da2661108https://www.wordfence.com/threat-intel/vulnerabilities/id/e363c09a-4381-4b3a-951c-9a0ff5669016?source=cve
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 27× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 02:40 UTCEG score recompute▼ 0.50
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-20 17:06 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:56 UTCEPSS rescore
- 2026-07-14 11:40 UTCOSV refresh
- 2026-07-13 22:29 UTCEPSS rescore
- 2026-07-12 05:45 UTCEPSS rescore
- 2026-07-12 05:45 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-04 06:30 UTCEPSS rescore
- 2026-07-01 15:05 UTCEPSS rescore
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-27 03:07 UTCEPSS rescore
- 2026-06-27 03:07 UTCEPSS rescore
- 2026-06-26 12:09 UTCOSV refresh
- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
Show 33 moreShow fewer
- 2026-06-23 21:32 UTCEPSS rescore
- 2026-06-23 21:32 UTCEPSS rescore
- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 01:59 UTCEPSS rescore
- 2026-06-21 01:58 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-17 17:52 UTCEPSS rescore
- 2026-06-17 17:52 UTCEPSS rescore
- 2026-06-16 17:52 UTCEPSS rescore
- 2026-06-16 17:52 UTCEPSS rescore
- 2026-06-15 17:47 UTCEPSS rescore
- 2026-06-13 22:59 UTCEPSS rescore
- 2026-06-13 22:59 UTCEPSS rescore
- 2026-06-13 22:59 UTCEPSS rescore
- 2026-06-12 23:11 UTCEPSS rescore
- 2026-06-12 23:11 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-08 19:11 UTCOSV refresh
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-05-28 13:44 UTCEPSS rescore
- 2026-05-28 13:44 UTCEPSS rescore
- 2026-05-28 13:44 UTCEPSS rescore
- 2026-05-26 13:43 UTCEPSS rescore
- 2026-05-26 13:43 UTCEPSS rescore
- 2026-05-24 02:58 UTCEG score recompute
- 2026-05-24 02:58 UTCGHSA enrichment
Publicly available exploits
(3 references)Working exploit code is in the public domain (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoCd0rb/CVE-2024-4439First seen May 6, 2024
The provided exploit code leverages a stored Cross-Site Scripting (XSS) vulnerability (CVE-2024-4439) in WordPress Core versions up to 6.5.1.
Open source ↗ - GitHub PoCMielPopsssssss/CVE-2024-4439First seen May 6, 2024
CVE-2024-4439 PoC
Open source ↗ - Nucleihttp/cves/2024/CVE-2024-4439.yamlFirst seen Jan 1, 2024
WordPress Core <6.5.2 - Cross-Site Scripting
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-80
- CVE-2019-13923EG 9.6CRITICAL
- CVE-2020-2503EG 9.0CRITICAL
- CVE-2018-19953NVD 6.1EG 9.0 KEVEPSS 98%MEDIUM
- CVE-2018-19943NVD 8.0EG 9.0 KEVEPSS 97%HIGH
- CVE-2020-13965NVD 6.1EG 9.0 KEVEPSS 99%MEDIUM
- CVE-2020-13562NVD 6.1EG 8.6EPSS 100%MEDIUM
- CVE-2020-13564NVD 6.1EG 8.5EPSS 99%MEDIUM
- CVE-2020-13563NVD 6.1EG 8.5EPSS 99%MEDIUM
- CVE-2020-26218EG 8.0HIGH
- CVE-2020-5241EG 7.7HIGH
Frequently asked(5)
What is CVE-2024-4439?
When was CVE-2024-4439 disclosed?
Is CVE-2024-4439 actively exploited?
What is the CVSS score of CVE-2024-4439?
How do I remediate CVE-2024-4439?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2024-4439
Is Your Infrastructure Affected by CVE-2024-4439?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.