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Fencer Vulns
critical 9.8

CVE-2021-24762 in the critical feed json

Perfect Survey < 1.5.2 - Unauthenticated SQL Injection

published 2022-02-01 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11674

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
86.8%
EPSS 86.8% chance of exploitation in 30 days, percentile 99.7%
public exploits
2
Metasploit, Exploit-DB, plus a Nuclei check

Summary

The Perfect Survey WordPress plugin before 1.5.2 does not validate and escape the question_id GET parameter before using it in a SQL statement in the get_question AJAX action, allowing unauthenticated users to perform SQL injection.

Patch / fix

  • getperfectsurvey perfect_survey 1.5.2

Timeline

  1. First public exploit (Metasploit auxiliary/scanner/http/wp_perfect_survey_sqli)
  2. Published

Exploit prediction

86.78% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit auxiliary/scanner/http/wp_perfect_survey_sqli WordPress Plugin Perfect Survey 1.5.1 SQLi (Unauthenticated) metasploit auxiliary, normal rank, 2021-10-05
  • EDB-50766 WordPress Plugin Perfect Survey - 1.5.1 - SQLi (Unauthenticated) webapps, 2022-02-21
  • Nuclei template WordPress Perfect Survey <1.5.2 - SQL Injection nuclei detection template
  • wpscan.com https://wpscan.com/vulnerability/c1620905-7c31-4e62-80f5-1d9635be11ad referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/166072/WordPress-Perfect-Survey-1.5.1-SQL-Injection.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Unknown Perfect Survey

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.