Reflected XSS via deficient nonce validation
Published Sep 5, 2025 · Updated Apr 28, 2026
Cross-site request forgery in ChrisHurst Bulk Watermark 1.6.10 and earlier allows remote attackers to trigger reflected XSS. The affected request handler omits or incorrectly performs WordPress nonce validation; the function, parameter, and exact reflection operation are undisclosed. Exploitation requires an authenticated administrator to follow a crafted link, causing attacker-supplied script to execute in that administrator's browser context.
Summary
What happened
Cross-site request forgery in ChrisHurst Bulk Watermark 1.6.10 and earlier allows remote attackers to trigger reflected XSS. The affected request handler omits or incorrectly performs WordPress nonce validation; the function, parameter, and exact reflection operation are undisclosed. Exploitation requires an authenticated administrator to follow a crafted link, causing attacker-supplied script to execute in that administrator's browser context.
The record
- CVE
- CVE-2025-58845
- Published
- Sep 5, 2025
- Updated
- Apr 28, 2026
- Vendor
- ChrisHurst
- Product
- Bulk Watermark
- Classifications
- CWE-352, CAPEC-591, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 5, 2025CVE publishedPublication date reported by the CVE source.
- Apr 28, 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=0 <=1.6.10
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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