CVE-2023-38191: An issue was discovered in SuperWebMailer 9.00.0.01710

Routine

MEDIUM 6.1DOWNGRADE

CVE-2023-38191 is a medium-severity flaw (CVSS 6.1) affecting superwebmailer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in SuperWebMailer 9.00.0.01710. It allows spamtest_external.php XSS via a crafted filename.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-10-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: superwebmailer

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

Am I affected?

Timeline

2023-10-20 22:15 UTCPublished CVE record published
2026-06-17 06:09 UTCUpdated Record last modified

superwebmailer superwebmailer DOWNGRADE

Affected: 9.00.0.01710

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.00.0.01710

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 9.00.0.01710 (Debian / Ubuntu)

apt-cache madison superwebmailer sudo apt install superwebmailer=<VERSION_BEFORE_9.00.0.01710> sudo apt-mark hold superwebmailer

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

dnf --showduplicates list superwebmailer sudo dnf downgrade superwebmailer-<VERSION_BEFORE_9.00.0.01710> sudo dnf versionlock add superwebmailer

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-2023-38191?

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

Is CVE-2023-38191 being exploited?

CVE-2023-38191 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-2023-38191 affect?

CVE-2023-38191 affects superwebmailer. Severity is medium (CVSS 6.1). An issue was discovered in SuperWebMailer 9.00.0.01710. It allows spamtest_external.php XSS via a crafted filename.

How urgent is CVE-2023-38191?

Priority 38/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2024-24131 MEDIUM 6.1 DOWNGRADE SuperWebMailer v9.31.0.01799 was discovered to contain a reflected cross-site scripting (XSS) vulenrability vi
CVE-2023-38194 MEDIUM 6.1 DOWNGRADE An issue was discovered in SuperWebMailer 9.00.0.01710
CVE-2023-38193 HIGH 8.8 DOWNGRADE An issue was discovered in SuperWebMailer 9.00.0.01710
CVE-2023-38192 MEDIUM 6.1 DOWNGRADE An issue was discovered in SuperWebMailer 9.00.0.01710
CVE-2023-38190 HIGH 8.8 DOWNGRADE An issue was discovered in SuperWebMailer 9.00.0.01710

References

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