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Fencer Intel
high 8.8

CVE-2021-24630 json

Schreikasten <= 0.14.18 - Author+ SQL Injections

published 5y ago modified 4mo ago also EUVD-2021-11542

cvss
8.8
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 Schreikasten WordPress plugin through 0.14.18 does not sanitise or escape the id GET parameter before using it in SQL statements in the comments dashboard from various actions, leading to authenticated SQL Injections which can be exploited by users as low as author

Is CVE-2021-24630 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

1.57% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/a0787dae-a4b7-4248-9960-aaffabfaeb9f referenced PoC, tagged "exploit" by a source, unverified
  • codevigilant.com https://codevigilant.com/disclosure/2021/wp-plugin-schreikasten/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/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 Schreikasten

Classification

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

References

Sources

Fencer Intel 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.