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CVE-2019-9870

30
FAUCET Score

CVE-2019-9870 describes a critical vulnerability in the plugin.js component of the w8tcha oEmbed plugin for CKEditor, affecting versions prior to 2019-03-14, due to improper handling of SCRIPT elements. This flaw carries a CVSS score of 9.8 (Critical), indicating a highly severe vulnerability that can be exploited remotely with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation (KEV list) and no public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, with 10 mentions, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 2019-03-14CPE matchmatch criteria
cpe:2.3:a:oembed_project:oembed:*:*:*:*:*:ckeditor:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.85%
Probability of exploitation in next 30 days
EPSS Percentile
76.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0185 is in the 65th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / w8tcha/CKEditor-oEmbed-Plugin/commit/10f6169e39510bbf5af913886037044458b9dc9b
PatchThird Party Advisory
github.com / w8tcha/CKEditor-oEmbed-Plugin/issues/94
Third Party Advisory