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Fencer Vulns
high 7.2

CVE-2021-24550 json

Broken Link Manager <= 0.6.5 - Authenticated (admin+) SQL Injection

published 2021-08-23 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11462

cvss
7.2
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

The Broken Link Manager WordPress plugin through 0.6.5 does not sanitise, validate or escape the url GET parameter before using it in a SQL statement when retrieving an URL to edit, leading to an authenticated SQL injection issue

Exploit prediction

1.58% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/1bf65448-689c-474d-a566-c9b6797d3e4a referenced PoC, tagged "exploit" by a source, unverified
  • codevigilant.com https://codevigilant.com/disclosure/2021/wp-plugin-broken-link-manager/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Unknown Broken Link Manager

Classification

Weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.