CVE-2023-5378: Improper Input Validation vulnerability in MegaBIP and already unsupported SmodBIP software allows for Stored

Q: How do I fix CVE-2023-5378?

megabip: upgrade to newer than 4.36.2; smodbip: upgrade to newer than 2.21. Exact commands for each OS are on this page.

Q: Is CVE-2023-5378 being exploited?

CVE-2023-5378 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-5378 affect?

CVE-2023-5378 affects megabip, smodbip. Severity is high (CVSS 8.8). Improper Input Validation vulnerability in MegaBIP and already unsupported SmodBIP software allows for Stored XSS.This issue affects SmodBIP in all versions and MegaBIP in versions up to 4.36.2. MegaBIP 5.08 was tested and is not vulnerabl

This month

HIGH 8.8UPGRADEUPGRADE

CVE-2023-5378 is a high-severity flaw (CVSS 8.8) affecting megabip, smodbip. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Input Validation vulnerability in MegaBIP and already unsupported SmodBIP software allows for Stored XSS.This issue affects SmodBIP in all versions and MegaBIP in versions up to 4.36.2. MegaBIP 5.08 was tested and is not vulnerable. A precise range of vulnerable versions remains unknown.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-01-29
Last modified	2026-06-17

Publisher (CNA): CERT.PL · Vendor: megabip · smod

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

Am I affected?

Timeline

2024-01-29 12:15 UTCPublished CVE record published
2026-06-17 06:48 UTCUpdated Record last modified

megabip megabip UPGRADE

Affected: <= 4.36.2

Fixed in: newer than 4.36.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 4.36.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade megabip

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade megabip

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

smod smodbip UPGRADE

Affected: <= 2.21

Fixed in: newer than 2.21

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.21 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade smodbip

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade smodbip

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2023-5378?

megabip: upgrade to newer than 4.36.2; smodbip: upgrade to newer than 2.21. Exact commands for each OS are on this page.

Is CVE-2023-5378 being exploited?

CVE-2023-5378 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-2023-5378 affect?

CVE-2023-5378 affects megabip, smodbip. Severity is high (CVSS 8.8). Improper Input Validation vulnerability in MegaBIP and already unsupported SmodBIP software allows for Stored XSS.This issue affects SmodBIP in all versions and MegaBIP in versions up to 4.36.2. MegaBIP 5.08 was tested and is not vulnerabl

How urgent is CVE-2023-5378?

Priority 42/100. High severity

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References

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