Sensitive browser data disclosure via unescaped location
Published Aug 15, 2024 · Updated Sep 3, 2024
Stored cross-site scripting in Friendica 2023.12 allows remote attackers to read sensitive browser data through a calendar event location. The calendar event post renderer inserts the stored location value as HTML without escaping it, allowing script tags to execute when the post is displayed. An attacker must cause a user to view the crafted event post; the injected script then runs in that user's browser context and can expose accessible data.
Summary
What happened
Stored cross-site scripting in Friendica 2023.12 allows remote attackers to read sensitive browser data through a calendar event location. The calendar event post renderer inserts the stored location value as HTML without escaping it, allowing script tags to execute when the post is displayed. An attacker must cause a user to view the crafted event post; the injected script then runs in that user's browser context and can expose accessible data.
The record
- CVE
- CVE-2024-27729
- Published
- Aug 15, 2024
- Updated
- Sep 3, 2024
- Vendor
- Friendica
- Product
- Friendica
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 15, 2024CVE publishedPublication date reported by the CVE source.
- Sep 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?
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- Affected versionversion=2023.12
What conditions does exploitation require?
What is affected?
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
- Friendica CVE disclosures calendar-location proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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