PT-2021-15956 · 10Web · The Backup By 10Web – Backup/Restore Plugin

M0Ze + 1 · Published 2021-07-12 · Updated 2021-07-14 · CVE-2021-24426

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions The Backup by 10Web – Backup and Restore Plugin WordPress plugin versions 1.0.20 and earlier

Description The issue is related to a reflected Cross-Site Scripting problem. It occurs because the tab parameter is not properly sanitised or escaped before being outputted back in the page. This allows for malicious scripts to be injected into the webpage.

Recommendations For versions 1.0.20 and earlier, as a temporary workaround, consider restricting access to the tab parameter in the affected API endpoint until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24426

Affected Products

The Backup By 10Web – Backup/Restore Plugin

References · 6

• 🔥 https://m0ze.ru/vulnerability/[2021-05-23]-[WordPress]-[CWE-79]-Backup-by-10Web-WordPress-Plugin-v1.0.20.txt · Exploit
• 🔥 https://wpscan.com/vulnerability/48464b3f-fe57-40fe-8868-398a36099fb9 · Exploit
• https://osv.dev/vulnerability/CVE-2021-24426 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24426 · Security Note
• https://t.me/cibsecurity/26079 · Telegram Post
• https://m0ze.ru/vulnerability/%5B2021-05-23%5D-%5BWordPress%5D-%5BCWE-79%5D-Backup-by-10Web-WordPress-Plugin-v1.0.20.txt · Note