CVE-2025-30899: wordpress user-registration Cross-site Scripting
CVSS: 5.9v3.1MediumModified
Published 27-03-2025Last modified 28-04-2026
Vulnerability summary
CVE-2025-30899 is a medium (CVSS 5.9) Cross-site Scripting vulnerability in wordpress user-registration. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.9% of scored vulnerabilities. Fixed in 4.0.4.
CVSS score
5.9/10
010
Medium · v3.1 (CVE.org)EPSS score
0.31%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 27-03-2025PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpeverest User Registration user-registration allows Stored XSS.This issue affects User Registration: from n/a through <= 4.0.3.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 5.9Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:LSources3 sources · 4.4–5.9
- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NDiffers
- wordfenceSource4.4MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
+0.01 pp
From 0.30% on 20-09-2026
20-09-202620-10-2026
EPSS score0.31%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Wpeverest2 products
- user_registration≤ 4.0.3
- user_registration_\&_membership< 4.0.4 | < 5.0.4
Wordpress1 product
- user-registration≤ 4.0.3 (fixed in 4.0.4)
2 vendors · 3 products