Vulnerability Details : 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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2019-16520
- cpe:2.3:a:semperplugins:all_in_one_seo_pack:*:*:*:*:*:wordpress:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-16520
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-16520
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST |
CWE ids for CVE-2019-16520
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-16520
-
https://github.com/sbaresearch/advisories/tree/public/2019/SBA-ADV-20190913-04_WordPress_Plugin_All_in_One_SEO_Pack
advisories/2019/SBA-ADV-20190913-04_WordPress_Plugin_All_in_One_SEO_Pack at public · sbaresearch/advisories · GitHubExploit;Third Party Advisory
-
https://wordpress.org/plugins/all-in-one-seo-pack/#developers
All in One SEO Pack – WordPress plugin | WordPress.orgProduct;Third Party Advisory
-
https://semperplugins.com/all-in-one-seo-pack-changelog/
All in One SEO Pack - Changelog | Semper PluginsRelease Notes;Vendor Advisory
-
https://wpvulndb.com/vulnerabilities/9915
All In One SEO Pack < 3.2.7 - Stored Cross-Site Scripting (XSS)Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2019/10/16/5
oss-security - [SBA-ADV-20190913-04] CVE-2019-16520: WordPress Plugin - All in One SEO Pack <= 3.2.6 - Stored XSSExploit;Mailing List;Third Party Advisory
-
https://github.com/semperfiwebdesign/all-in-one-seo-pack/issues/2888
Escape meta description output · Issue #2888 · semperfiwebdesign/all-in-one-seo-pack · GitHubPatch;Third Party Advisory
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