CVE-2020-35358: DomainMOD domainmod-v4.15.0 is affected by an insufficient session expiration vulnerability

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-35358 is a critical-severity flaw (CVSS 9.8) affecting domainmod. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

DomainMOD domainmod-v4.15.0 is affected by an insufficient session expiration vulnerability. On changing a password, both sessions using the changed password and old sessions in any other browser or device do not expire and remain active. Such flaws frequently give attackers unauthorized access to some system data or functionality.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Weakness	CWE-613
Published	2021-03-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: domainmod

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

Am I affected?

Timeline

2021-03-15 12:15 UTCPublished CVE record published
2026-06-17 03:13 UTCUpdated Record last modified

domainmod domainmod DOWNGRADE

Affected: 4.15.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.15.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.15.0 (Debian / Ubuntu)

apt-cache madison domainmod sudo apt install domainmod=<VERSION_BEFORE_4.15.0> sudo apt-mark hold domainmod

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

dnf --showduplicates list domainmod sudo dnf downgrade domainmod-<VERSION_BEFORE_4.15.0> sudo dnf versionlock add domainmod

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-2020-35358?

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

Is CVE-2020-35358 being exploited?

CVE-2020-35358 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-2020-35358 affect?

CVE-2020-35358 affects domainmod. Severity is critical (CVSS 9.8). DomainMOD domainmod-v4.15.0 is affected by an insufficient session expiration vulnerability. On changing a password, both sessions using the changed password and old sessions in any other browser or device do not expire and remain active. S

How urgent is CVE-2020-35358?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

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References

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