CVE-2021-39497 — CRITICAL (9.8)

Vulnerability Description

eyoucms 1.5.4 lacks sanitization of input data, allowing an attacker to inject a url to trigger blind SSRF via the saveRemote() function.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Eyoucms	Eyoucms	1.5.4

Related Weaknesses (CWE)

CWE-918

References

http://hptcybersec.com/ssrf_PoC.jpgBroken Link
https://github.com/KietNA-HPT/CVEExploitThird Party Advisory
https://github.com/eyoucms/eyoucms/releases/tag/v1.5.4Third Party Advisory
http://hptcybersec.com/ssrf_PoC.jpgBroken Link
https://github.com/KietNA-HPT/CVEExploitThird Party Advisory
https://github.com/eyoucms/eyoucms/releases/tag/v1.5.4Third Party Advisory

FAQ

What is CVE-2021-39497?

CVE-2021-39497 is a vulnerability with a CVSS score of 9.8 (CRITICAL). eyoucms 1.5.4 lacks sanitization of input data, allowing an attacker to inject a url to trigger blind SSRF via the saveRemote() function.

How severe is CVE-2021-39497?

CVE-2021-39497 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-39497?

Check the references section above for vendor advisories and patch information. Affected products include: Eyoucms Eyoucms.