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Mallory
MediumPublic exploit

Reflected XSS in EyouCms /yxcms/index.php web_ico parameter

IdentifiersCVE-2023-2058CWE-79· Improper Neutralization of Input…

CVE-2023-2058 is a cross-site scripting (XSS) vulnerability in EyouCms up to version 1.6.2. The vulnerability exists in the HTTP POST request handler of /yxcms/index.php?r=admin/extendfield/mesedit&tabid=12&id=4, where the web_ico parameter is not properly sanitized, allowing an attacker to inject arbitrary JavaScript code.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows remote attackers to execute arbitrary JavaScript in the context of the affected user's browser session, potentially leading to session hijacking, credential theft, or other malicious actions.

Mitigation

If you can’t patch tonight, do this now.

As a temporary mitigation, restrict access to the vulnerable endpoint, implement web application firewall (WAF) rules to filter malicious input, and ensure proper input validation and output encoding for the web_ico parameter.

Remediation

Patch, then assume compromise.

Upgrade EyouCms to a version later than 1.6.2 where this vulnerability is patched. Ensure all user-supplied input is properly sanitized and encoded before being rendered in the browser.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
EyoucmsEyoucmsapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence

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Associated malware

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Detection signatures

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Vendor-by-vendor mapping

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Social activity

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