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Fencer Vulns
medium 6.5

CVE-2021-25037 json

All In One SEO < 4.1.5.3 - Authenticated SQL Injection

published 2022-01-17 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11949

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 70%
public exploits
0
none known

Summary

The All in One SEO WordPress plugin before 4.1.5.3 is affected by an authenticated SQL injection issue, which was discovered during an internal audit by the Jetpack Scan team, and could grant attackers access to privileged information from the affected site’s database (e.g., usernames and hashed passwords).

Patch / fix

  • aioseo all_in_one_seo 4.1.5.3

Exploit prediction

1.29% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • jetpack.com https://jetpack.com/2021/12/14/severe-vulnerabilities-fixed-in-all-in-one-seo-plugin-version-4-1-5-3/ referenced PoC, tagged "exploit" by a source, unverified
  • wpscan.com https://wpscan.com/vulnerability/4cd2a57b-3e1a-4acf-aecb-201ed9f4ee6d 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 All in One SEO – Best WordPress SEO Plugin – Easily Improve SEO Rankings & Increase Traffic

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.