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CVE-2019-1010091 is a cross-site scripting vulnerability in TinyMCE 4.7.11 and 4.7.12 affecting the media element component, specifically the embed tab. The flaw is caused by improper neutralization of attacker-controlled input during web page generation. An attacker can supply malicious content that, when pasted by a victim into the media element's embed tab, results in execution of injected JavaScript in the browser context of the application using TinyMCE.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A prior TinyMCE media component XSS vulnerability mentioned to show repeated exposure in the same attack surface.
A historical TinyMCE XSS vulnerability mentioned only as background in the vendor security history table.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.