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Fencer Vulns
medium 6.5

CVE-2021-24181 json

Tutor LMS < 1.7.7 - SQL Injection via tutor_mark_answer_as_correct

published 2021-04-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11095

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

The tutor_mark_answer_as_correct AJAX action from the Tutor LMS – eLearning and online course solution WordPress plugin before 1.7.7 was vulnerable to blind and time based SQL injections that could be exploited by students.

Patch / fix

  • themeum tutor_lms 1.7.7

Exploit prediction

1.25% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/d5a00322-7098-4f8d-8e5e-157b63449c17 referenced PoC, tagged "exploit" by a source, unverified
  • wordfence.com https://www.wordfence.com/blog/2021/03/several-vulnerabilities-patched-in-tutor-lms-plugin/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected products

  • Unknown Tutor LMS – eLearning and online course solution

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.