The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'about_me' parameter in all versions up to, and including, 2.11.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVE-2026-8489
Score 6.4 from GitHub Security Advisory published 2026-07-03. a secondary CVSS source baseline 6.4; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.4
- EG Score
- 6.4(medium)
- EG Risk
- 29(Track)EG Risk 29/100SSVC: 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 computedSeverity64% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 35%
- KEV
- Not listed
Published
July 3, 2026
Last Modified
July 6, 2026
References (11)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/class-fields.php#L4577
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/class-form.php#L854
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/class-profile.php#L479
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/um-actions-form.php#L628
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/um-filters-fields.php#L271
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-fields.php#L4577
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-form.php#L854
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-profile.php#L479
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/um-actions-form.php#L628
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/um-filters-fields.php#L271
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/229a4e61-571c-44c6-9972-4dfc743afffe?source=cve
Vendor Advisories for CVE-2026-8489(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 57× 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.
Showing the most recent 100 of 156 total refreshes for this CVE.
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-08 22:01 UTCEPSS rescore
- 2026-09-06 13:48 UTCEPSS rescore
- 2026-09-05 23:50 UTCEG score recompute
- 2026-09-05 23:50 UTCGHSA enrichment
- 2026-09-05 15:31 UTCEPSS rescore
- 2026-09-04 05:07 UTCEPSS rescore
- 2026-09-02 14:12 UTCEPSS rescore
- 2026-09-01 13:54 UTCEPSS rescore
- 2026-09-01 04:40 UTCEPSS rescore
- 2026-08-30 19:18 UTCEPSS rescore
- 2026-08-30 11:20 UTCEG score recompute
- 2026-08-30 11:20 UTCGHSA enrichment
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-28 21:42 UTCEPSS rescore
- 2026-08-27 22:12 UTCEG score recompute
- 2026-08-27 22:12 UTCGHSA enrichment
- 2026-08-27 14:25 UTCEPSS rescore
- 2026-08-26 14:47 UTCEPSS rescore
- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-25 03:10 UTCEG score recompute
- 2026-08-25 03:10 UTCGHSA enrichment
- 2026-08-24 14:18 UTCEPSS rescore
- 2026-08-24 04:08 UTCGHSA enrichment
- 2026-08-23 05:04 UTCEG score recompute
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- 2026-08-23 05:04 UTCGHSA enrichment
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 06:01 UTCEG score recompute
- 2026-08-22 06:01 UTCGHSA enrichment
- 2026-08-21 23:49 UTCEPSS rescore
- 2026-08-21 04:26 UTCEG score recompute
- 2026-08-21 04:26 UTCGHSA enrichment
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 03:58 UTCEG score recompute
- 2026-08-20 03:58 UTCGHSA enrichment
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-18 22:30 UTCEG score recompute
- 2026-08-18 22:30 UTCGHSA enrichment
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-17 22:49 UTCEG score recompute
- 2026-08-17 22:49 UTCGHSA enrichment
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-16 19:59 UTCEG score recompute
- 2026-08-16 19:59 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 02:15 UTCEPSS rescore
- 2026-08-15 20:57 UTCEG score recompute
- 2026-08-15 20:57 UTCGHSA enrichment
- 2026-08-15 01:31 UTCEPSS rescore
- 2026-08-14 21:55 UTCGHSA enrichment
- 2026-08-13 22:53 UTCEG score recompute
- 2026-08-13 22:53 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-12 23:52 UTCEG score recompute
- 2026-08-12 23:52 UTCGHSA enrichment
- 2026-08-12 13:51 UTCEPSS rescore
- 2026-08-12 00:50 UTCEG score recompute
- 2026-08-12 00:50 UTCGHSA enrichment
- 2026-08-11 13:43 UTCEPSS rescore
- 2026-08-11 01:49 UTCEG score recompute
- 2026-08-11 01:49 UTCGHSA enrichment
- 2026-08-11 00:00 UTCEPSS rescore
- 2026-08-10 02:47 UTCEG score recompute
- 2026-08-10 02:47 UTCGHSA enrichment
- 2026-08-09 13:47 UTCEPSS rescore
- 2026-08-09 03:46 UTCEG score recompute
- 2026-08-09 03:46 UTCGHSA enrichment
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-08 04:45 UTCEG score recompute
- 2026-08-08 04:45 UTCGHSA enrichment
- 2026-08-07 16:30 UTCEPSS rescore
- 2026-08-07 05:42 UTCEG score recompute
- 2026-08-07 05:42 UTCGHSA enrichment
- 2026-08-06 13:47 UTCEPSS rescore
- 2026-08-06 06:40 UTCEG score recompute
- 2026-08-06 06:40 UTCGHSA enrichment
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 07:38 UTCEG score recompute
- 2026-08-05 07:38 UTCGHSA enrichment
- 2026-08-04 15:10 UTCEPSS rescore
- 2026-08-04 10:39 UTCEPSS rescore
- 2026-08-04 08:36 UTCEG score recompute
- 2026-08-04 08:36 UTCGHSA enrichment
- 2026-08-03 10:36 UTCEPSS rescore
- 2026-08-03 07:41 UTCGHSA enrichment
- 2026-08-02 08:19 UTCEG score recompute
- 2026-08-02 08:19 UTCGHSA enrichment
- 2026-08-02 02:27 UTCEPSS rescore
- 2026-08-01 09:17 UTCEG score recompute
- 2026-08-01 09:17 UTCGHSA enrichment
- 2026-08-01 04:16 UTCEPSS rescore
- 2026-07-31 10:15 UTCEG score recompute
- 2026-07-31 10:15 UTCGHSA enrichment
- 2026-07-30 16:28 UTCEPSS rescore
- 2026-07-30 11:12 UTCEG score recompute
- 2026-07-30 11:11 UTCGHSA enrichment
- 2026-07-30 01:30 UTCEPSS rescore
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-8489?
When was CVE-2026-8489 disclosed?
Is CVE-2026-8489 actively exploited?
What is the CVSS score of CVE-2026-8489?
How do I remediate CVE-2026-8489?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-8489
Is Your Infrastructure Affected by CVE-2026-8489?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.