Authenticated script execution via undisclosed DOM sink
Published Dec 31, 2025 · Updated Dec 31, 2025
DOM-based XSS in Codetipi Valenti Engine 1.0.3 and earlier allows remote authenticated users to execute script via crafted input. Patchstack has not published the affected DOM source, sink, or input path that processes attacker-controlled data without neutralization. Exploitation requires low-privileged access and user interaction; successful script runs in the victim's browser context and can read or alter same-origin content or disrupt the session.
Summary
What happened
DOM-based XSS in Codetipi Valenti Engine 1.0.3 and earlier allows remote authenticated users to execute script via crafted input. Patchstack has not published the affected DOM source, sink, or input path that processes attacker-controlled data without neutralization. Exploitation requires low-privileged access and user interaction; successful script runs in the victim's browser context and can read or alter same-origin content or disrupt the session.
The record
- CVE
- CVE-2025-63021
- Published
- Dec 31, 2025
- Updated
- Dec 31, 2025
- Vendor
- Codetipi
- Product
- Valenti Engine
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 31, 2025CVE publishedPublication date reported by the CVE source.
- Dec 31, 2025Record 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 <=1.0.3
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.
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Technologies
Your stack
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Your stack
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