Stored XSS via unneutralized profile signatures
Published Feb 2, 2023 · Updated Aug 2, 2024
Stored XSS in YAF.NET 3.1.0 through 3.1.11 allows remote authenticated users to execute JavaScript in forum visitors' browsers. The Edit Signature page accepts an arbitrary JavaScript payload in its message field and later renders the stored signature beneath the user's posts without effective neutralization. A forum account is required to plant the payload, and execution requires another user to view an affected post, exposing data or actions available to that browser session.
Summary
What happened
Stored XSS in YAF.NET 3.1.0 through 3.1.11 allows remote authenticated users to execute JavaScript in forum visitors' browsers. The Edit Signature page accepts an arbitrary JavaScript payload in its message field and later renders the stored signature beneath the user's posts without effective neutralization. A forum account is required to plant the payload, and execution requires another user to view an affected post, exposing data or actions available to that browser session.
The record
- CVE
- CVE-2023-0650
- Published
- Feb 2, 2023
- Updated
- Aug 2, 2024
- Vendor
- YetAnotherForum.NET
- Product
- YAF.NET
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 2, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 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?
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=3.1.11
- 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
- Edit Signature onmouseover payloadproof of concept · demonstrated
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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