Stored script execution via unstripped private messages
Published Jan 27, 2023 · Updated Mar 28, 2025
Stored cross-site scripting in YetAnotherForum.NET 3.1.0 through 3.1.10 allows remote authenticated users to run script in a recipient's browser. PostPrivateMessage stores HTML from the subject and message fields without stripping it, and the inbox renders the stored subject and body. A forum account is required to send the private message, and the recipient must open it before the payload executes in that recipient's trusted session.
Summary
What happened
Stored cross-site scripting in YetAnotherForum.NET 3.1.0 through 3.1.10 allows remote authenticated users to run script in a recipient's browser. PostPrivateMessage stores HTML from the subject and message fields without stripping it, and the inbox renders the stored subject and body. A forum account is required to send the private message, and the recipient must open it before the payload executes in that recipient's trusted session.
The record
- CVE
- CVE-2023-0549
- Published
- Jan 27, 2023
- Updated
- Mar 28, 2025
- Vendor
- YetAnotherForum.NET
- Product
- YetAnotherForum.NET
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 27, 2023CVE publishedPublication date reported by the CVE source.
- Mar 28, 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=3.1.0
- Affected versionversion=3.1.1
- Affected versionversion=3.1.10
- Affected versionversion=3.1.2
- Affected versionversion=3.1.3
- Affected versionversion=3.1.4
- Affected versionversion=3.1.5
- Affected versionversion=3.1.6
- Affected versionversion=3.1.7
- Affected versionversion=3.1.8
- Affected versionversion=3.1.9
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
- Private-message stored XSS proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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