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PatchSiren cyber security CVE debrief

CVE-2019-9978 WordPress CVE debrief

CVE-2019-9978 is a Cross-Site Scripting (XSS) issue affecting the WordPress Social Warfare Plugin. CISA added it to the Known Exploited Vulnerabilities catalog on 2021-11-03, which indicates known exploitation and makes remediation urgent. CISA’s listed action is to apply updates per vendor instructions.

Vendor
WordPress
Product
Social Warfare Plugin
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

WordPress site administrators and security teams responsible for sites using the Social Warfare Plugin should treat this as a priority, especially because it appears in CISA’s KEV catalog.

Technical summary

The published record identifies a cross-site scripting vulnerability in the Social Warfare Plugin for WordPress. The available source corpus does not provide version ranges, attack preconditions, or exploit details. The key defensive signal is CISA KEV inclusion, which means organizations should assume exposure is actionable until the plugin is confirmed updated or removed.

Defensive priority

High. KEV inclusion means this vulnerability is recognized by CISA as actively exploited or of sufficient exploitation concern to require prompt remediation.

Recommended defensive actions

  • Inventory WordPress installations to confirm whether the Social Warfare Plugin is present.
  • Apply the vendor-recommended update path as soon as possible.
  • If the plugin is not required, remove it to reduce attack surface.
  • Verify that the WordPress site is running the latest approved plugin release after remediation.
  • Monitor affected sites for unexpected page behavior or other signs of script injection.
  • Track KEV-listed vulnerabilities in routine patch management workflows.

Evidence notes

Source evidence is limited to the CVE record, NVD entry, and CISA KEV listing. The CISA KEV metadata explicitly states: vendorProject WordPress, product Social Warfare Plugin, vulnerability name 'WordPress Social Warfare Plugin Cross-Site Scripting (XSS) Vulnerability', dateAdded 2021-11-03, dueDate 2022-05-03, and requiredAction 'Apply updates per vendor instructions.' No exploit code, affected versions, or additional technical details were provided in the supplied corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-9978 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-9978

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2019-9978 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-9978

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.