CVE-2025-70831: A Remote Code Execution (RCE) vulnerability was found in Smanga 3.2.7 in the /php/path/rescan.php interface

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2025-70831 is a critical-severity flaw (CVSS 9.8) affecting smanga. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Remote Code Execution (RCE) vulnerability was found in Smanga 3.2.7 in the /php/path/rescan.php interface. The application fails to properly sanitize user-supplied input in the mediaId parameter before using it in a system shell command. This allows an unauthenticated attacker to inject arbitrary operating system commands, leading to complete server compromise.

Why this priority

Critical severity
CISA SSVC: public proof of concept
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-78
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 16:22 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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · php-pecl-yac · FIXED · 3.0.2-1.fc46 · FEDORA-2026-0322a78385 · source

sudo dnf upgrade --advisory=FEDORA-2026-0322a78385

Fedora ELN · openldap · FIXED · 2.6.16-1.eln159 · FEDORA-2026-4b30c86326 · source

sudo dnf upgrade --advisory=FEDORA-2026-4b30c86326

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/LX-66-LX/cve/issues/5

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-2025-70831?

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

Is CVE-2025-70831 being exploited?

CVE-2025-70831 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-2025-70831 affect?

CVE-2025-70831 affects smanga. Severity is critical (CVSS 9.8). A Remote Code Execution (RCE) vulnerability was found in Smanga 3.2.7 in the /php/path/rescan.php interface. The application fails to properly sanitize user-supplied input in the mediaId parameter before using it in a system shell command.

How urgent is CVE-2025-70831?

Priority 61/100. Critical severity; CISA SSVC: public proof of concept; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

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References

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