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CVE-2021-24426

18
FAUCET Score

CVE-2021-24426 is a reflected Cross-Site Scripting (XSS) vulnerability affecting the Backup by 10Web – Backup and Restore Plugin for WordPress, specifically versions up to and including 1.0.20. The flaw stems from insufficient sanitization of the "tab" parameter before it is displayed on the page. This vulnerability has a CVSS score of 4.8 (Medium), indicating a network-based attack requiring high privileges and user interaction, with potential for low impact on confidentiality and integrity. The EPSS score is very low, suggesting a minimal probability of exploitation. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are also negligible, further suggesting low current interest or impact.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.20CPE matchmatch criteria
cpe:2.3:a:web-dorado:backup-wd:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

4.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.7
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 81st percentile among its peer group of 4,937 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

m0ze.ru / vulnerability/%5B2021-05-23%5D-%5BWordPress%5D-%5BCWE-79%5D-Backup-by-10Web-WordPress-Plugin-v1.0.20.txt
wpscan.com / vulnerability/48464b3f-fe57-40fe-8868-398a36099fb9
ExploitThird Party Advisory