CVE-2023-33518: emoncms v11 and later was discovered to contain an information disclosure vulnerability which allows attackers

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MEDIUM 5.3REMOTEDOWNGRADE

CVE-2023-33518 is a medium-severity flaw (CVSS 5.3) affecting emoncms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

emoncms v11 and later was discovered to contain an information disclosure vulnerability which allows attackers to obtain the web directory path and other information leaked by the server via a crafted web request.

Why this priority

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	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-668, CWE-203
Published	2023-06-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: emoncms

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

Am I affected?

Timeline

2023-06-05 15:15 UTCPublished CVE record published
2026-06-17 06:01 UTCUpdated Record last modified

emoncms emoncms DOWNGRADE

Affected: 11.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 11.0 (Debian / Ubuntu)

apt-cache madison emoncms sudo apt install emoncms=<VERSION_BEFORE_11.0> sudo apt-mark hold emoncms

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

dnf --showduplicates list emoncms sudo dnf downgrade emoncms-<VERSION_BEFORE_11.0> sudo dnf versionlock add emoncms

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-2023-33518?

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

Is CVE-2023-33518 being exploited?

CVE-2023-33518 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-2023-33518 affect?

CVE-2023-33518 affects emoncms. Severity is medium (CVSS 5.3). emoncms v11 and later was discovered to contain an information disclosure vulnerability which allows attackers to obtain the web directory path and other information leaked by the server via a crafted web request.

How urgent is CVE-2023-33518?

Priority 38/100. Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-60938 HIGH 7.5 DOWNGRADE Emoncms 11.7.3 has a remote code execution vulnerability in the firmware upload feature that allows authentica
CVE-2025-60936 MEDIUM 6.1 DOWNGRADE Emoncms 11.7.3 is vulnerable to Cross Site in the input handling mechanism
CVE-2025-22992 CRITICAL 9.8 UPGRADE A SQL Injection vulnerability exists in the /feed/insert.json endpoint of the Emoncms project >= 11.6.9

References

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