Stored XSS via unescaped shortcode attributes
Published Feb 21, 2023 · Updated Mar 12, 2025
Stored XSS in aerin Loan Comparison before 1.5.3 allows remote authenticated users to inject scripts through shortcode attributes. The shortcode renderer outputs attacker-controlled attributes such as slider values into page content without validation or context-appropriate escaping. Contributor-level access is required to save the payload in a page or post, and the script executes in the site origin when a visitor opens that content.
Summary
What happened
Stored XSS in aerin Loan Comparison before 1.5.3 allows remote authenticated users to inject scripts through shortcode attributes. The shortcode renderer outputs attacker-controlled attributes such as slider values into page content without validation or context-appropriate escaping. Contributor-level access is required to save the payload in a page or post, and the script executes in the site origin when a visitor opens that content.
The record
- CVE
- CVE-2023-0366
- Published
- Feb 21, 2023
- Updated
- Mar 12, 2025
- Vendor
- Graham
- Product
- Loan Comparison
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 21, 2023CVE publishedPublication date reported by the CVE source.
- Mar 12, 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=0 <1.5.3
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
- Shortcode-attribute stored-XSS proof of conceptproof of concept · validated
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Technologies
Your stack
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Your stack
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