WordPress security changelog
MEDIUM CVE-2019-16520 Modified

All In One Seo Pack: Cross-site scripting

All In One Seo Pack is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.

CVE / CNA score 5.4 CVSS · cve@mitre.org
NVD score 5.4 CVSS 3.1 · nvd@nist.gov
Component
All In One Seo Pack
Plugin slug
all-in-one-seo-pack
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Oct 16, 2019
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Oct 16, 2019 and is one of 12 known issues for this plugin.

What to do

Update, patch or deactivate.

Update All In One Seo Pack to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The all-in-one-seo-pack plugin before 3.2.7 for WordPress (aka All in One SEO Pack) is susceptible to Stored XSS due to improper encoding of the SEO-specific description for posts provided by the plugin via unsafe placeholder replacement.

NVD vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

Primary and upstream sources