Exploited. On CISA's list since 2021-11-03.

WordPress Social Warfare Plugin Cross-Site Scripting (XSS) Vulnerability

CVE-2019-9978 · WordPress Social Warfare Plugin · Published 2019-03-24

How bad would it be?

6.1 out of 10

CVSS rates it medium.

How likely is it to be used?

73%

Estimated chance of exploitation in the next 30 days, among the top 1% of all scored flaws (EPSS, 2026-10-29).

Is it already being used?

Yes

CISA has seen it exploited in real attacks. For US government agencies the fix is deadline passed 1641 days ago (2022-05-03).

What CISA says to do

Apply updates per vendor instructions.

WordPress Social Warfare plugin contains a cross-site scripting (XSS) vulnerability that allows for remote code execution. This vulnerability affects Social Warfare and Social Warfare Pro.

nvd.nist.gov

What the flaw is

The social-warfare plugin before 3.5.3 for WordPress has stored XSS via the wp-admin/admin-post.php?swp_debug=load_options swp_url parameter, as exploited in the wild in March 2019. This affects Social Warfare and Social Warfare Pro.

From the NVD.

Learn this

Explore this week’s weaknesses and all learning topics

Understand the kind of weakness behind this flaw. These resources teach the weakness, rather than reproduce this specific CVE. Follow the vendor's advice above to fix the affected product.

Cross-site scripting

Untrusted content becomes code running in another visitor's browser.

CWE-79 · CISA KEV; NVD record: 134c704f-9b21-4f2e-91b3-4a467353bcc0; NVD record: nvd@nist.gov

Reading and practice labs · Free account for labs. Basic HTTP knowledge; some labs use Burp Suite.

Explore the labs at PortSwigger Web Security Academy How it is prevented

CWE is a catalogue of weakness types. Labels come from the sources shown and can differ or change. Resource matches reviewed 16 October 2026.

On SentryFeed

No story in the last 14 days has mentioned it.

Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.