CVE-2019-16520

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.53% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 72.5% of scored records. A rank, not a probability.

NVD base score

5.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2019-10-16 13:58Z6 YR AGO

Last updated

2024-08-05 01:17Z2 YR AGO

Reserved

2019-09-19

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

8ae24998dbc8d8e7172ca632a667a23fc4341bc0bcd4fccd99283c4dd6c7a7ff

• wordpress.orghttps://wordpress.org/plugins/all-in-one-seo-pack/#developersx_refsource_MISC
• semperplugins.comhttps://semperplugins.com/all-in-one-seo-pack-changelog/x_refsource_MISC
• github.comhttps://github.com/semperfiwebdesign/all-in-one-seo-pack/issues/2888x_refsource_MISC
• github.comhttps://github.com/sbaresearch/advisories/tree/public/2019/SBA-ADV-20190913-04_WordPress_Plugin_All_in_One_SEO_Packx_refsource_MISC
• www.openwall.com[oss-security] 20191016 [SBA-ADV-20190913-04] CVE-2019-16520: WordPress Plugin - All in One SEO Pack <= 3.2.6 - Stored XSShttp://www.openwall.com/lists/oss-security/2019/10/16/5mailing-listx_refsource_MLIST
• wpvulndb.comhttps://wpvulndb.com/vulnerabilities/9915x_refsource_MISC