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CVE-2026-57807 is a critical authentication bypass vulnerability in the miniOrange OAuth Single Sign On - SSO (OAuth Client) plugin for WordPress. The flaw affects versions through 38.5.8 and is classified as CWE-288, Authentication Bypass Using an Alternate Path or Channel. The issue is tied to the plugin’s password recovery flow, which can be abused by an unauthenticated remote attacker to bypass normal authentication controls and authenticate as arbitrary WordPress users, including administrative accounts. The vulnerability is remotely exploitable with low attack complexity and does not require prior access or user interaction.
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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.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical authentication bypass / broken authentication vulnerability in the miniOrange WordPress OAuth Single Sign-On (SSO (OAuth Client)) plugin that abuses the password recovery mechanism, allowing unauthenticated remote attackers to authenticate as any WordPress user, including administrators, and fully compromise the site.
An authentication bypass vulnerability in the miniOrange OAuth Single Sign On - SSO (OAuth Client) WordPress plugin that allows password recovery exploitation, affecting versions through 38.5.8.
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.