Stored XSS via unescaped custom CSS
Published May 15, 2025 · Updated May 20, 2025
Stored XSS in Icegram Engage before 3.1.32 allows remote authenticated administrators to execute scripts through campaign custom CSS. The custom CSS setting stores input without sanitizing or escaping it, so a closing style tag can inject an event-handler payload that runs when the campaign is previewed. Exploitation requires administrator access on a site where unfiltered_html is disabled and a viewer to open the affected preview or campaign, enabling script execution in the viewer's browser context.
Summary
What happened
Stored XSS in Icegram Engage before 3.1.32 allows remote authenticated administrators to execute scripts through campaign custom CSS. The custom CSS setting stores input without sanitizing or escaping it, so a closing style tag can inject an event-handler payload that runs when the campaign is previewed. Exploitation requires administrator access on a site where unfiltered_html is disabled and a viewer to open the affected preview or campaign, enabling script execution in the viewer's browser context.
The record
- CVE
- CVE-2024-13486
- Published
- May 15, 2025
- Updated
- May 20, 2025
- Vendor
- Icegram
- Product
- Icegram Engage
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- May 15, 2025CVE publishedPublication date reported by the CVE source.
- May 20, 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 <3.1.32
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
- WPScan campaign custom CSS proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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