Stored script execution via unescaped filter comments
Published Apr 18, 2024 · Updated Aug 2, 2024
Stored cross-site scripting in TOTOLINK N300RT 2.1.8-B20201030.1539 allows remote authenticated users to execute script in another user's browser. The Comment field stores an SVG onload payload without neutralizing it, and the management page later renders and executes the stored JavaScript. A low-privileged authenticated user must save the payload and another user must visit the page, placing that user's in-origin data and actions at risk.
Summary
What happened
Stored cross-site scripting in TOTOLINK N300RT 2.1.8-B20201030.1539 allows remote authenticated users to execute script in another user's browser. The Comment field stores an SVG onload payload without neutralizing it, and the management page later renders and executes the stored JavaScript. A low-privileged authenticated user must save the payload and another user must visit the page, placing that user's in-origin data and actions at risk.
The record
- CVE
- CVE-2024-32334
- Published
- Apr 18, 2024
- Updated
- Aug 2, 2024
- Vendor
- TOTOLINK
- Product
- N300RT
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 18, 2024CVE 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=- <=2.1.8-B20201030.1539
What conditions does exploitation require?
What is affected?
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
- N300RT IP/Port Filtering stored-XSS proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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