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Stored cross-site scripting in Ultimate Member plugin for WordPress

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Ultimate Member plugin for WordPress is affected in all versions up to and including 2.14.0. The 'user_url' profile field is not sanitized or escaped on input or output, which is a cross-site scripting flaw (CWE-79). An authenticated attacker with subscriber-level access or above can inject arbitrary web scripts that run when a visitor clicks the Website URL link on the attacker's public profile.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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 'user_url' parameter in all versions up to, and including, 2.14.0 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. Successful exploitation requires a visitor to click the attacker's Website URL link on their public Ultimate Member profile, a condition that is trivially met since the redirect-confirmation onclick handler is enabled by default on all new installations.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00193 9th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ultimatememberUltimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Pluginup to 2.14.0—No fix listedCNA
  • Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Vendorultimatemember Affected up to 2.14.0 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:ultimatemember:ultimate_member:*:*:*:*:*:*:*:*——ultimatemember
  • cpe:2.3:a:ultimatemember:ultimate_member:*:*:*:*:*:*:*:* Versions — — ·ultimatemember

Remediation

The sources list no fixed version for Ultimate Member (User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin).

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-107625
  2. 2026-10-28 Alias added: GHSA-7x8c-934p-w8g4
  3. 2026-10-28 CISA SSVC decision points changed
  4. 2026-10-28 Priority changed: MEDIUM → LOW

References

  • TI-2024-00992 SQL injection in ultimatemember Ultimate Member – User Profile, Registration, Login… CVSS 3.1CRITICAL 9.8
  • TI-2023-03232 Ultimate Member < 2.6.7 - Unauthenticated Privilege Escalation CVSS 3.1CRITICAL 9.8
  • TI-2022-03726 JobBoardWP < 1.2.2 - Unauthenticated Arbitrary File Upload CVSS 3.1HIGH 7.5
  • TI-2020-19304 WordPress Plugin ultimate-member 2.1.3 Local File Inclusion CVSS 4.0MEDIUM 6.8
  • TI-2024-01973 Ultimate Member <= 2.8.3 - Unauthenticated Stored Cross-Site Scripting CVSS 3.1HIGH 7.2
  • TI-2020-18475 An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka… CVSS 3.1CRITICAL 10.0
See all 76 →

Sources