CVE-2026-5306

MEDIUMNVD 5.45.4—Elevated

5.4

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 v3: 5.4
EG Score: 5.4(high)
EPSS: 23.5%
KEV: Not listed

Published

April 28, 2026

Last Modified

April 28, 2026

References (1)

contact@wpscanhttps://wpscan.com/vulnerability/97908c15-6e7a-4242-8c6f-66c8b804364c/

Data Freshness Timeline

(refreshed 10× in last 7d / 15× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-21 22:43 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 15:22 UTCEG score recompute
2026-05-20 15:22 UTCGHSA enrichment
2026-05-20 11:22 UTCepss_batch

Frequently asked(5)

What is CVE-2026-5306?

CVE-2026-5306 is a medium vulnerability published on April 28, 2026. 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

When was CVE-2026-5306 disclosed?

CVE-2026-5306 was first published in the National Vulnerability Database on April 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-5306 actively exploited?

CVE-2026-5306 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-5306?

CVE-2026-5306 has a CVSS v3 base score of 5.4 (NVD).

How do I remediate CVE-2026-5306?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5306, 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

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CVE-2026-5306

📅 Published

🔄 Last Modified

🔗 References (1)