Cross-site scripting via unscanned STYLE child nodes
Published Apr 21, 2022 · Updated Aug 3, 2024
Cross-site scripting in OWASP AntiSamy before 1.6.6 allows remote attackers to execute script via crafted STYLE content. AntiSamyDOMScanner.processStyleTag scans and rewrites only the first STYLE child node, leaving additional parsed child nodes unsanitized in serialized output. The affected application must accept user-controlled HTML or CSS and render the cleaned output; victim interaction then runs attacker script in the hosting site's security context.
Summary
What happened
Cross-site scripting in OWASP AntiSamy before 1.6.6 allows remote attackers to execute script via crafted STYLE content. AntiSamyDOMScanner.processStyleTag scans and rewrites only the first STYLE child node, leaving additional parsed child nodes unsanitized in serialized output. The affected application must accept user-controlled HTML or CSS and render the cleaned output; victim interaction then runs attacker script in the hosting site's security context.
The record
- CVE
- CVE-2022-28367
- Published
- Apr 21, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, CAPEC-63
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 21, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record 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.
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
- Smuggled STYLE child-node regression payloadsproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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