Authenticated script execution via undisclosed DOM flaw
Published May 25, 2026 · Updated May 25, 2026
DOM-based XSS in Melapress WP Activity Log 5.6.3 and earlier allows remote authenticated users to execute script in another user's browser. The CNA reference and upstream release identify the XSS class but do not disclose the affected function, DOM sink, or untrusted input source. Subscriber-level access can initiate the attack, and successful exploitation requires a privileged user to interact with attacker-controlled content.
Summary
What happened
DOM-based XSS in Melapress WP Activity Log 5.6.3 and earlier allows remote authenticated users to execute script in another user's browser. The CNA reference and upstream release identify the XSS class but do not disclose the affected function, DOM sink, or untrusted input source. Subscriber-level access can initiate the attack, and successful exploitation requires a privileged user to interact with attacker-controlled content.
The record
- CVE
- CVE-2026-45435
- Published
- May 25, 2026
- Updated
- May 25, 2026
- Vendor
- Melapress
- Product
- WP Activity Log
- Classifications
- CWE-79, CAPEC-588, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 25, 2026CVE publishedPublication date reported by the CVE source.
- May 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=n/a <=5.6.3 changes=[{"at":"5.6.3.1","status":"unaffected"}]
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- Patchstack known-exploitation designationreported exploitation
Technologies
Your stack
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Your stack
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