6.4

CVE-2023-0586: All in One SEO Pack <= 4.2.9 - Authenticated (Contributor+) Stored Cross-Site Scripting

Modified
Published 24-02-2023Last modified 08-04-2026

Vulnerability summary

CVE-2023-0586 is a medium (CVSS 6.4) Cross-site Scripting vulnerability in aioseo all_in_one_seo. EPSS estimates a 2.53% chance of exploitation in the next 30 days, higher than 84.7% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
2.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 24-02-2023
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

Description

The All in One SEO Pack plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple parameters in versions up to, and including, 4.2.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with Contributor+ role to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

2.53%

Chance of exploitation in the next 30 days

Percentile

85%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.53% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Aioseo1 product
Smub1 product
Wordpress1 product
  • all-in-one-seo-pack≤ 4.2.9 (fixed in 4.3.0)

3 vendors · 3 products

References

5 links