TI-2021-06598 Aliases CVE-2021-24306 GHSA-8cvw-43cv-8xmh

Ultimate Member < 2.1.20 - Authenticated Reflected Cross-Site Scripting (XSS)

LOW 25CWE-79Published 2021-05-24 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

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

Summary

The Ultimate Member – User Profile, User Registration, Login & Membership Plugin WordPress plugin before 2.1.20 did not properly sanitise, validate or encode the query string when generating a link to edit user's own profile, leading to an authenticated reflected Cross-Site Scripting issue. Knowledge of the targeted username is required to exploit this, and attackers would then need to make the related logged in user open a malicious link.

Why it matters now

EPSS 0.0062 49th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Ultimate Member – User Profile, User Registration, Login & Membership Plugin (Ultimate Member): 2.1.20

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
ultimatemember	Ultimate Member – User Profile, User Registration, Login & Membership Plugin	2.1.20 to before 2.1.20	2.1.20	Patch available	CNA

Ultimate Member – User Profile, User Registration, Login & Membership Plugin Vendorultimatemember Affected 2.1.20 to before 2.1.20 Fixed in 2.1.20 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ultimatemember:ultimate_member::::::wordpress::*	before 2.1.20	Vulnerable	ultimatemember

cpe:2.3:a:ultimatemember:ultimate_member:*:*:*:*:*:wordpress:*:* Versions before 2.1.20 Vulnerable ·ultimatemember

Remediation

Fix · CNA Ultimate Member – User Profile, User Registration, Login & Membership Plugin (Ultimate Member) Fixed in 2.1.20

Timeline

2026-10-02 Threatist record created from CVE-2021-24306
2026-10-03 Alias added: GHSA-8cvw-43cv-8xmh

References

Exploit 1

https://wpscan.com/vulnerability/35516555-c50c-486a-886c-df49c9e51e2c

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-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
TI-2020-18477 An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka… CVSS 3.1CRITICAL 10.0
TI-2020-18476 An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka… CVSS 3.1CRITICAL 9.9

See all 36 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences