Browser code execution via stored pet names
Published Sep 25, 2025 · Updated Sep 26, 2025
Stored cross-site scripting in SmartBear Swagger Petstore 1.0.7 allows remote attackers to execute JavaScript via POST /api/v3/pet. The endpoint accepts a crafted name value without filtering or encoding, stores the payload, and the front end later renders it without sanitization. No authentication is required to submit the payload, but another user must view the affected pet details; execution occurs in that user's browser and can expose or alter data accessible to the page.
Summary
What happened
Stored cross-site scripting in SmartBear Swagger Petstore 1.0.7 allows remote attackers to execute JavaScript via POST /api/v3/pet. The endpoint accepts a crafted name value without filtering or encoding, stores the payload, and the front end later renders it without sanitization. No authentication is required to submit the payload, but another user must view the affected pet details; execution occurs in that user's browser and can expose or alter data accessible to the page.
The record
- CVE
- CVE-2025-29156
- Published
- Sep 25, 2025
- Updated
- Sep 26, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 25, 2025CVE publishedPublication date reported by the CVE source.
- Sep 26, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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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
- xss_for_peststore proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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