CVE-2025-70833: An Authentication Bypass vulnerability in Smanga 3.2.7 allows an unauthenticated attacker to reset the passwor

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CRITICAL 9.4REMOTEDOWNGRADE

CVE-2025-70833 is a critical-severity flaw (CVSS 9.4) affecting smanga. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Authentication Bypass vulnerability in Smanga 3.2.7 allows an unauthenticated attacker to reset the password of any user (including the administrator) and fully takeover the account by manipulating POST parameters. The issue stems from insecure permission validation in check-power.php.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.4 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-287, CWE-639
Published	2026-02-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: lkw199711

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-20 17:25 UTCPublished CVE record published
2026-06-17 10:03 UTCUpdated Record last modified

lkw199711 smanga DOWNGRADE

Affected: 3.2.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2.7

1. Check installed version

apt-cache policy smanga || rpm -q smanga || smanga --version

2. No fixed release: DOWNGRADE to a release before 3.2.7 (Debian / Ubuntu)

apt-cache madison smanga sudo apt install smanga=<VERSION_BEFORE_3.2.7> sudo apt-mark hold smanga

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list smanga sudo dnf downgrade smanga-<VERSION_BEFORE_3.2.7> sudo dnf versionlock add smanga

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-70833?

smanga: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-70833 being exploited?

CVE-2025-70833 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-70833 affect?

CVE-2025-70833 affects smanga. Severity is critical (CVSS 9.4). An Authentication Bypass vulnerability in Smanga 3.2.7 allows an unauthenticated attacker to reset the password of any user (including the administrator) and fully takeover the account by manipulating POST parameters. The issue stems from i

How urgent is CVE-2025-70833?

Priority 48/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-70831 CRITICAL 9.8 DOWNGRADE A Remote Code Execution (RCE) vulnerability was found in Smanga 3.2.7 in the /php/path/rescan.php interface
CVE-2024-34193 HIGH 7.5 DOWNGRADE smanga 3.2.7 does not filter the file parameter at the PHP/get file flow.php interface, resulting in a path tr

References

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