Stored XSS via unsanitized page title
Published Aug 24, 2022 · Updated Jun 17, 2025
Stored XSS in Kirby CMS 2.5.12 and earlier allows remote authenticated users to execute script through a crafted page title. The add-page title field accepts a script payload without neutralizing it, stores the value, and renders it when the resulting page is opened. Low-privileged Panel access is required to store the payload, and a user must open the created page; successful exploitation runs attacker-controlled JavaScript in that user's browser context.
Summary
What happened
Stored XSS in Kirby CMS 2.5.12 and earlier allows remote authenticated users to execute script through a crafted page title. The add-page title field accepts a script payload without neutralizing it, stores the value, and renders it when the resulting page is opened. Low-privileged Panel access is required to store the payload, and a user must open the created page; successful exploitation runs attacker-controlled JavaScript in that user's browser context.
The record
- CVE
- CVE-2018-14520
- Published
- Aug 24, 2022
- Updated
- Jun 17, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 24, 2022CVE publishedPublication date reported by the CVE source.
- Jun 17, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- Kirby CMS 2.5.12 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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