Vulnerability Details CVE-2026-29840
JiZhiCMS v2.5.6 and before contains a Stored Cross-Site Scripting (XSS) vulnerability in the release function within app/home/c/UserController.php. The application attempts to sanitize input by filtering <script> tags but fails to recursively remove dangerous event handlers in other HTML tags (such as onerror in <img> tags). This allows an authenticated remote attacker to inject arbitrary web script or HTML via the body parameter in a POST request to /user/release.html.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 10.6%
CVSS Severity
CVSS v3 Score 5.4
References
Products affected by CVE-2026-29840
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cpe:2.3:a:jizhicms:jizhicms:1.4
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cpe:2.3:a:jizhicms:jizhicms:1.5
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cpe:2.3:a:jizhicms:jizhicms:1.5.1
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cpe:2.3:a:jizhicms:jizhicms:1.5.2
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cpe:2.3:a:jizhicms:jizhicms:1.6
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cpe:2.3:a:jizhicms:jizhicms:1.6.1
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cpe:2.3:a:jizhicms:jizhicms:1.6.2
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cpe:2.3:a:jizhicms:jizhicms:1.6.3
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cpe:2.3:a:jizhicms:jizhicms:1.6.4
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cpe:2.3:a:jizhicms:jizhicms:1.6.5
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cpe:2.3:a:jizhicms:jizhicms:1.6.6
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cpe:2.3:a:jizhicms:jizhicms:1.6.7
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cpe:2.3:a:jizhicms:jizhicms:1.7
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cpe:2.3:a:jizhicms:jizhicms:1.7.1
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cpe:2.3:a:jizhicms:jizhicms:1.8
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cpe:2.3:a:jizhicms:jizhicms:1.8.1
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cpe:2.3:a:jizhicms:jizhicms:1.9
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cpe:2.3:a:jizhicms:jizhicms:1.9.1
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cpe:2.3:a:jizhicms:jizhicms:1.9.2
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cpe:2.3:a:jizhicms:jizhicms:1.9.3
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cpe:2.3:a:jizhicms:jizhicms:1.9.4
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cpe:2.3:a:jizhicms:jizhicms:1.9.5
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cpe:2.3:a:jizhicms:jizhicms:2.2.5
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cpe:2.3:a:jizhicms:jizhicms:2.3.1
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cpe:2.3:a:jizhicms:jizhicms:2.3.3
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cpe:2.3:a:jizhicms:jizhicms:2.3.4
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cpe:2.3:a:jizhicms:jizhicms:2.3.5
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cpe:2.3:a:jizhicms:jizhicms:2.3.7
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cpe:2.3:a:jizhicms:jizhicms:2.4
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cpe:2.3:a:jizhicms:jizhicms:2.4.0
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cpe:2.3:a:jizhicms:jizhicms:2.4.3
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cpe:2.3:a:jizhicms:jizhicms:2.4.5
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cpe:2.3:a:jizhicms:jizhicms:2.4.6
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cpe:2.3:a:jizhicms:jizhicms:2.4.7
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cpe:2.3:a:jizhicms:jizhicms:2.4.8
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cpe:2.3:a:jizhicms:jizhicms:2.4.9
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cpe:2.3:a:jizhicms:jizhicms:2.5.0
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cpe:2.3:a:jizhicms:jizhicms:2.5.1
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cpe:2.3:a:jizhicms:jizhicms:2.5.2
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cpe:2.3:a:jizhicms:jizhicms:2.5.3
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cpe:2.3:a:jizhicms:jizhicms:2.5.4