CVE-2021-35261

Name: CVE-2021-35261
Creator: NVD / NIST
Published: 2023-02-17T18:15:11.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2021-35261 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. File Upload Vulnerability in Yupoxion BearAdmin before commit 10176153528b0a914eb4d726e200fd506b73b075 allows attacker to execute arbitrary remote code via the Upfile function of the extend/tools/Ueditor endpoint.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

File Upload Vulnerability in Yupoxion BearAdmin before commit 10176153528b0a914eb4d726e200fd506b73b075 allows attacker to execute arbitrary remote code via the Upfile function of the extend/tools/Ueditor endpoint.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Bearadmin Project	Bearadmin	All versions

References

https://github.com/yupoxiong/BearAdmin/issues/16Exploit, Issue Tracking
https://github.com/yupoxiong/BearAdmin/issues/16Exploit, Issue Tracking

Timeline

Published: Feb 17, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-35261?

How severe is CVE-2021-35261?

CVE-2021-35261 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2021-35261?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-35261?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST