CVE-2019-6780

MEDIUMNVD 6.16.1—Elevated

6.1

The Wise Chat plugin before 2.7 for WordPress mishandles external links because rendering/filters/post/WiseChatLinksPostFilter.php omits noopener and noreferrer.

CVSS v3: 6.1
EG Score: 6.1(medium)
EPSS: 88.0%
KEV: Not listed

Published

January 24, 2019

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://plugins.trac.wordpress.org/changeset/2016929/wise-chat/trunk/src/rendering/filters/post/WiseChatLinksPostFilter.php
cve@mitrehttps://wordpress.org/plugins/wise-chat/#developers
cve@mitrehttps://www.exploit-db.com/exploits/46247/
af854a3a-2127-422b-91ae-364da2661108https://plugins.trac.wordpress.org/changeset/2016929/wise-chat/trunk/src/rendering/filters/post/WiseChatLinksPostFilter.php
af854a3a-2127-422b-91ae-364da2661108https://wordpress.org/plugins/wise-chat/#developers
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/46247/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-601URL Redirection to Untrusted Site (Open Redirect)

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
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2026-05-31 00:14 UTCepss_batch
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2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 22:57 UTCEG score recompute
2026-05-27 22:57 UTCGHSA enrichment
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
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2026-05-24 16:47 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-46247
First seen Jan 25, 2019
WordPress Plugin Wisechat 2.6.3 - Reverse Tabnabbing
Open source ↗

Frequently asked(5)

What is CVE-2019-6780?

CVE-2019-6780 is a medium vulnerability published on January 24, 2019. The Wise Chat plugin before 2.7 for WordPress mishandles external links because rendering/filters/post/WiseChatLinksPostFilter.php omits noopener and noreferrer.

When was CVE-2019-6780 disclosed?

CVE-2019-6780 was first published in the National Vulnerability Database on January 24, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-6780 actively exploited?

CVE-2019-6780 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-6780?

CVE-2019-6780 has a CVSS v3 base score of 6.1 (NVD).

How do I remediate CVE-2019-6780?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-6780, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2019-6780

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-6780?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)