WordPress security changelog
MEDIUM CVE-2019-17550 Modified

Blog2Social: Cross-site scripting

Blog2Social 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 6.1 CVSS · cve@mitre.org
NVD score 6.1 CVSS 3.1 · nvd@nist.gov
Component
Blog2Social
Plugin slug
blog2social
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Nov 13, 2019
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Nov 13, 2019 and is one of 22 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Blog2Social 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 Blog2Social plugin before 5.9.0 for WordPress is affected by: Cross Site Scripting (XSS). The impact is: Allows an attacker to execute arbitrary HTML and JavaScript code via the b2s_id parameter. The component is: views/b2s/post.calendar.php. The attack vector is: When the Administrator is logged in, a reflected XSS may execute upon a click on a malicious URL.

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

References

Primary and upstream sources