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
MEDIUMPre-NVD 6.46.4—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 6.4 from GitHub Security Advisory published 2026-07-03. a secondary CVSS source baseline 6.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.4Exploit: NoneExposed: 0
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(high)
- EPSS
- 15.2%
- 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 17× in last 7d / 17× 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.
- 2026-07-07 02:48 UTCEG score recompute
- 2026-07-07 02:48 UTCGHSA enrichment
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 03:45 UTCEG score recompute
- 2026-07-06 03:45 UTCGHSA enrichment
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 04:43 UTCEG score recompute
- 2026-07-05 04:43 UTCGHSA enrichment
- 2026-07-05 02:31 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 05:35 UTCEG score recompute
- 2026-07-04 05:35 UTCGHSA enrichment
- 2026-07-03 06:32 UTCEG score recompute
- 2026-07-03 06:32 UTCGHSA enrichment
- 2026-07-03 06:31 UTCNVD updatefirst tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-8489?
CVE-2026-8489 is a medium vulnerability published on July 3, 2026. 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…
When was CVE-2026-8489 disclosed?
CVE-2026-8489 was first published in the National Vulnerability Database on July 3, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8489 actively exploited?
CVE-2026-8489 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8489?
CVE-2026-8489 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-8489?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8489, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
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.