CVE-2023-37786: Multiple cross-site scripting (XSS) vulnerabilities in Geeklog v2.2.2 allow attackers to execute arbitrary web

Routine

MEDIUM 4.8DOWNGRADE

CVE-2023-37786 is a medium-severity flaw (CVSS 4.8) affecting geeklog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in Geeklog v2.2.2 allow attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Mail Settings[backend], Mail Settings[host], Mail Settings[port] and Mail Settings[auth] parameters of the /admin/configuration.php.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-07-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: geeklog

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

Am I affected?

Timeline

2023-07-13 17:15 UTCPublished CVE record published
2026-06-17 06:08 UTCUpdated Record last modified

geeklog geeklog DOWNGRADE

Affected: 2.2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.2.2 (Debian / Ubuntu)

apt-cache madison geeklog sudo apt install geeklog=<VERSION_BEFORE_2.2.2> sudo apt-mark hold geeklog

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

dnf --showduplicates list geeklog sudo dnf downgrade geeklog-<VERSION_BEFORE_2.2.2> sudo dnf versionlock add geeklog

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-2023-37786?

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

Is CVE-2023-37786 being exploited?

CVE-2023-37786 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-2023-37786 affect?

CVE-2023-37786 affects geeklog. Severity is medium (CVSS 4.8). Multiple cross-site scripting (XSS) vulnerabilities in Geeklog v2.2.2 allow attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Mail Settings[backend], Mail Settings[host], Mail Settings[port] and Mail

How urgent is CVE-2023-37786?

Priority 33/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2023-46059 MEDIUM 4.8 DOWNGRADE Cross Site Scripting (XSS) vulnerability in Geeklog-Core geeklog v.2.2.2 allows a remote attacker to execute a
CVE-2023-46058 MEDIUM 4.8 DOWNGRADE Cross Site Scripting (XSS) vulnerability in Geeklog-Core geeklog v.2.2.2 allows a remote attacker to execute a
CVE-2023-37787 MEDIUM 4.8 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in Geeklog v2.2.2 allow attackers to execute arbitrary web
CVE-2016-4849 MEDIUM 6.1 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in Geeklog IVYWE edition 2.1.1 allow remote attackers to i
CVE-2013-1470 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in calendar/index.php in the Calendar plugin in Geeklog before 1.8.2s

References

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