VulnerabilityModified

CVE-2019-16520

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.

MEDIUM 5.4EPSS 1.53%

Does this matter?

Lower severity and a low EPSS score (1.53%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.1: 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS: 1.53% probability · 73th percentile
CISA KEV: Not listed
Weakness: CWE-79
Affected: semperplugins/all in one seo pack
Source: cve@mitre.org

References

http://www.openwall.com/lists/oss-security/2019/10/16/5Exploit, Mailing List, Third Party Advisory
https://github.com/sbaresearch/advisories/tree/public/2019/SBA-ADV-20190913-04_WordPress_Plugin_All_in_One_SEO_PackExploit, Third Party Advisory
https://github.com/semperfiwebdesign/all-in-one-seo-pack/issues/2888Patch, Third Party Advisory
https://semperplugins.com/all-in-one-seo-pack-changelog/Release Notes, Vendor Advisory
https://wordpress.org/plugins/all-in-one-seo-pack/#developersProduct, Third Party Advisory
https://wpvulndb.com/vulnerabilities/9915Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/10/16/5Exploit, Mailing List, Third Party Advisory
https://github.com/sbaresearch/advisories/tree/public/2019/SBA-ADV-20190913-04_WordPress_Plugin_All_in_One_SEO_PackExploit, Third Party Advisory
https://github.com/semperfiwebdesign/all-in-one-seo-pack/issues/2888Patch, Third Party Advisory
https://semperplugins.com/all-in-one-seo-pack-changelog/Release Notes, Vendor Advisory
https://wordpress.org/plugins/all-in-one-seo-pack/#developersProduct, Third Party Advisory
https://wpvulndb.com/vulnerabilities/9915Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.