CVE-2023-30261: Command Injection vulnerability in OpenWB 1.6 and 1.7 allows remote attackers to run arbitrary commands via cr

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-30261 is a critical-severity flaw (CVSS 9.8) affecting openwb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Command Injection vulnerability in OpenWB 1.6 and 1.7 allows remote attackers to run arbitrary commands via crafted GET request.

Why this priority

Critical severity
EPSS top 2%: very likely to be exploited
Public exploit reference
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	31.7% (top 2%)
CISA exploited list	No
Weakness	CWE-78
Published	2023-06-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: openwb

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

Am I affected?

Timeline

2023-06-26 14:15 UTCPublished CVE record published
2026-06-17 05:54 UTCUpdated Record last modified

openwb openwb DOWNGRADE

Affected: 1.6 · 1.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.6 (Debian / Ubuntu)

apt-cache madison openwb sudo apt install openwb=<VERSION_BEFORE_1.6> sudo apt-mark hold openwb

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

dnf --showduplicates list openwb sudo dnf downgrade openwb-<VERSION_BEFORE_1.6> sudo dnf versionlock add openwb

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 · borgmatic · FIXED · 2.2.0-1.fc46 · FEDORA-2026-041229e71b · source

sudo dnf upgrade --advisory=FEDORA-2026-041229e71b

Fedora ELN · pie · FIXED · 1.5.4-1.eln159 · FEDORA-2026-a2c0261d3a · source

sudo dnf upgrade --advisory=FEDORA-2026-a2c0261d3a

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-2023-30261?

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

Is CVE-2023-30261 being exploited?

CVE-2023-30261 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-2023-30261 affect?

CVE-2023-30261 affects openwb. Severity is critical (CVSS 9.8). Command Injection vulnerability in OpenWB 1.6 and 1.7 allows remote attackers to run arbitrary commands via crafted GET request.

How urgent is CVE-2023-30261?

Priority 72/100. Critical severity; EPSS top 2%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

References

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