Person
Security researcher, founder and CEO of Previdian, a firm that runs honeypots to track exploitation of new vulnerabilities; known for WordPress security work.
Attackers made 1,423 attempts against Previdian honeypots since September 19 to exploit Langflow CVE-2026-105740 (CVSS 9.9, versions before 1.9.0). In one sequence they got the required login with a common username and password, Previdian said.
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Previdian recorded exploitation attempts against Atlassian's CVE-2026-21589 within two hours of watchTowr publishing the arbitrary file access technique. The CVSS 9.3 flaw lets an unauthenticated attacker read specific webroot files across eight Data Center products.
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Atlassian disclosed CVE-2026-21589, a 9.3-rated unauthenticated file-read flaw affecting all eight of its self-hosted Data Center products. A public proof of concept drew exploitation attempts within two hours of landing on 7 October.
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CISA says all four are under active exploitation, and three of them are unauthenticated flaws in edge and management appliances. Its own alert cites BOD 26-04 and prints no due date for any of them.
Perspective Coverage
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The flaw reaches code execution only where the active theme has a top-level directory starting with page- and a readable local .php file such as pearcmd.php sits on the server. Previdian has logged 68 attempts.
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Adobe shipped the out-of-band hotfix on September 8. Sansec dates exploitation to September 4, and that four-day gap is why the advisory pairs the patch with a required encryption-key rotation.
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CVE-2026-75650 scores a flat 10.0 and was already in use on September 4. Adobe's hotfix comes paired with encryption key rotation, and Sansec's Rust backdoor findings matter more than the score does.
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The mid-August Citrix advisory that many teams parked behind lower-risk work now has attack traffic behind it, and the appliances in scope are the ones fronting remote access. Role and firmware decide scope, not appliance count.
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