CVE-2019-16661: Ogma CMS 0.5 has XSS via creation of a new blog.

Routine

MEDIUM 5.4DOWNGRADE

CVE-2019-16661 is a medium-severity flaw (CVSS 5.4) affecting ogma cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Ogma CMS 0.5 has XSS via creation of a new blog.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-09-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: digimute

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

Am I affected?

Timeline

2019-09-21 18:15 UTCPublished CVE record published
2026-06-17 02:22 UTCUpdated Record last modified

digimute ogma cms DOWNGRADE

Affected: 0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.5

1. Check installed version

apt-cache policy ogma-cms || rpm -q ogma-cms || ogma-cms --version

2. No fixed release: DOWNGRADE to a release before 0.5 (Debian / Ubuntu)

apt-cache madison ogma-cms sudo apt install ogma-cms=<VERSION_BEFORE_0.5> sudo apt-mark hold ogma-cms

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

dnf --showduplicates list ogma-cms sudo dnf downgrade ogma-cms-<VERSION_BEFORE_0.5> sudo dnf versionlock add ogma-cms

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-2019-16661?

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

Is CVE-2019-16661 being exploited?

CVE-2019-16661 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-2019-16661 affect?

CVE-2019-16661 affects ogma cms. Severity is medium (CVSS 5.4). Ogma CMS 0.5 has XSS via creation of a new blog.

How urgent is CVE-2019-16661?

Priority 37/100. Public exploit reference

Related CVEs

CVE-2018-16380 HIGH 8.8 DOWNGRADE An issue was discovered in Ogma CMS 0.4 Beta
CVE-2018-16379 MEDIUM 4.8 DOWNGRADE Ogma CMS 0.4 Beta has XSS via the "Footer Text footer" field on the "Theme/Theme Options" screen.

References

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