Second-factor bypass via inconsistent 2FA verification
Published Jun 15, 2026 · Updated Jun 15, 2026
Authentication bypass in Really Simple Security 9.5.10 and earlier allows remote attackers with a victim's password to bypass 2FA. The 2FA login flow inconsistently verifies the second factor, but the vendor and CNA have not published the affected function or exact validation error. The attacker must first obtain the victim's password; successful exploitation permits actions as that user and can expose administrator access.
Summary
What happened
Authentication bypass in Really Simple Security 9.5.10 and earlier allows remote attackers with a victim's password to bypass 2FA. The 2FA login flow inconsistently verifies the second factor, but the vendor and CNA have not published the affected function or exact validation error. The attacker must first obtain the victim's password; successful exploitation permits actions as that user and can expose administrator access.
The record
- CVE
- CVE-2026-48970
- Published
- Jun 15, 2026
- Updated
- Jun 15, 2026
- Vendor
- Really Simple Plugins
- Product
- Really Simple Security
- Classifications
- CWE-288, CAPEC-554, T1078
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 15, 2026CVE publishedPublication date reported by the CVE source.
- Jun 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=n/a <=9.5.10 changes=[{"at":"9.5.10.1","status":"unaffected"}]
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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