CVE-2019-12938: The Roundcube component of Analogic Poste.io 2.1.6 uses .htaccess to protect the logs/ folder, which is effect

Routine

MEDIUM 4.3DOWNGRADE

CVE-2019-12938 is a medium-severity flaw (CVSS 4.3) affecting poste.io. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Roundcube component of Analogic Poste.io 2.1.6 uses .htaccess to protect the logs/ folder, which is effective with the Apache HTTP Server but is ineffective with nginx. Attackers can read logs via the webmail/logs/sendmail URI.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-693
Published	2019-06-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: analogic

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

Am I affected?

Timeline

2019-06-24 14:15 UTCPublished CVE record published
2026-06-17 02:15 UTCUpdated Record last modified

analogic poste.io DOWNGRADE

Affected: 2.1.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.6

1. Check installed version

apt-cache policy poste.io || rpm -q poste.io || poste.io --version

2. No fixed release: DOWNGRADE to a release before 2.1.6 (Debian / Ubuntu)

apt-cache madison poste.io sudo apt install poste.io=<VERSION_BEFORE_2.1.6> sudo apt-mark hold poste.io

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

dnf --showduplicates list poste.io sudo dnf downgrade poste.io-<VERSION_BEFORE_2.1.6> sudo dnf versionlock add poste.io

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-2019-12938?

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

Is CVE-2019-12938 being exploited?

CVE-2019-12938 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-2019-12938 affect?

CVE-2019-12938 affects poste.io. Severity is medium (CVSS 4.3). The Roundcube component of Analogic Poste.io 2.1.6 uses .htaccess to protect the logs/ folder, which is effective with the Apache HTTP Server but is ineffective with nginx. Attackers can read logs via the webmail/logs/sendmail URI.

How urgent is CVE-2019-12938?

Priority 36/100. Public exploit reference

Software pages

nginx vulnerabilities · Apache HTTP Server vulnerabilities · Roundcube vulnerabilities

References

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