CVE-2025-8838: my-site Auth Bypass — Exploit

Description

A vulnerability has been found in WinterChenS my-site up to 1f7525f15934d9d6a278de967f6ec9f1757738d8. This vulnerability affects the function preHandle of the file /admin/ of the component Backend Interface. The manipulation of the argument uri leads to improper authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The code maintainer responded to the issue that "[he] tried it, and using this link automatically redirects to the login page."

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CVSS v3.1 Score

7.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-287 Improper Authentication

Affected Products

Vendor	Product	Versions
winterchens	my-site	All

References

Exploits

https://github.com/WinterChenS/my-site/issues/97 https://github.com/WinterChenS/my-site/issues/97

Other References

https://github.com/WinterChenS/my-site/issues/97#issuecomment-2986947791 https://github.com/WinterChenS/my-site/issues/97#issuecomment-2987091571 https://vuldb.com/?ctiid.319372 https://vuldb.com/?id.319372 https://vuldb.com/?submit.622421 https://github.com/WinterChenS/my-site/issues/97#issuecomment-2986947791 https://github.com/WinterChenS/my-site/issues/97#issuecomment-2987091571 https://vuldb.com/?submit.622421

Frequently Asked Questions

What is CVE-2025-8838? +

A vulnerability has been found in WinterChenS my-site up to 1f7525f15934d9d6a278de967f6ec9f1757738d8. This vulnerability affects the function preHandle of the file /admin/ of the component Backend Interface. The manipulation of the argument uri leads to improper authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The code maintainer responded to the issue that "[he] tried it, and using this link automatically redirects to the login page." It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2025-8838? +

CVE-2025-8838 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-8838? +

CVE-2025-8838 affects products from winterchens, specifically: my-site. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-8838? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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