Browser script execution via img onerror attribute
Published Jul 25, 2025 · Updated Jul 25, 2025
Cross-site scripting in Grav 1.7.46 through 1.7.48 allows remote attackers to run JavaScript through a crafted img onerror attribute. Published records identify the HTML event-handler sink but do not disclose the affected endpoint or code path that fails to neutralize the attribute. A victim must render the crafted content in a browser; the script then runs in the Grav origin and can act with that user's session.
Summary
What happened
Cross-site scripting in Grav 1.7.46 through 1.7.48 allows remote attackers to run JavaScript through a crafted img onerror attribute. Published records identify the HTML event-handler sink but do not disclose the affected endpoint or code path that fails to neutralize the attribute. A victim must render the crafted content in a browser; the script then runs in the Grav origin and can act with that user's session.
The record
- CVE
- CVE-2025-46198
- Published
- Jul 25, 2025
- Updated
- Jul 25, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 25, 2025CVE publishedPublication date reported by the CVE source.
- Jul 25, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- Grav img onerror proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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