Vulnerability · CVE-2026-45435
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP Activity Log allows DOM-Based XSS.
Published May 25, 2026 · corrected/updated Oct 13, 2026 · Melapress wp_activity_log · evidence confidence very high
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP Activity Log allows DOM-Based XSS. This issue affects WP Activity Log: from n/a through 5.6.3.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-45435 is a medium public vulnerability record for Melapress wp_activity_log. CISA lists it as known exploited. Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether Melapress wp_activity_log is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: Melapress wp_activity_log. Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 6.5, EPSS 0.2%. CISA lists it as known exploited. Weakness classes: CWE-79. Sources contributing to this record: cve_org, epss, nvd, vulncheck_kev. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Confirmed in CISA KEV since Oct 13, 2026. Listed in CISA KEV and VulnCheck KEV.
Patch and remediation
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 25, 2026 · NIST NVD
Detected
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP Activity Log allows DOM-Based XSS. This issue affects WP Activity Log: from n/a through 5.6.3.
Jul 24, 2026 · NIST NVD
Updated
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP Activity Log allows DOM-Based XSS. This issue affects WP Activity Log: from n/a through 5.6.3.
Oct 13, 2026 · CISA KEV
Known exploited
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Oct 13, 2026 · VulnCheck KEV
Updated
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP Activity Log allows DOM-Based XSS. This issue affects WP Activity Log: from n/a through 5.6.3.
Affected
- vendor Melapress wp_activity_logversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-45435
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-45435
30-day exploitation probability 0.2%
first.org - NIST NVDVulnerability recordCVE-2026-45435
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP Activity Log allows DOM-Based XSS. This issue affects WP Activity Log: from n/a through 5.6.3.
nvd.nist.gov - VulnCheck KEVConfirmed exploitationCVE-2026-45435
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP Activity Log allows DOM-Based XSS. This issue affects WP Activity Log: from n/a through 5.6.3.
vulncheck.com