CVE-2026-5306: unknown check & log email Cross-site Scripting
CVSS: 7.2v3.1HighDeferred
Published 28-04-2026Last modified 28-04-2026
Vulnerability summary
CVE-2026-5306 is a high (CVSS 7.2) Cross-site Scripting vulnerability in unknown check & log email. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 14.9% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 2.0.13.
CVSS score
7.2/10
010
High · v3.1 (wordfence)EPSS score
0.25%
0%100%
Low · +0.09 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 28-04-2026PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
The Check & Log Email WordPress plugin before 2.0.13 does not properly handle email replacement, which could allow unauthenticated users to perform Stored XSS attacks when the email encoder setting is enabled
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.2Preferred score · wordfence (Source)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NSources3 sources · 5.4–7.2
- CVE.orgCNA5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
+0.09 pp
From 0.15% on 21-09-2026
21-09-202621-10-2026
EPSS score0.25%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Unknown1 product
- check & log email< 2.0.13
Wordpress1 product
- check-email< 2.0.13
2 vendors · 2 products