CVE-2020-23824: ArGo Soft Mail Server 1.8.8.9 is affected by Cross Site Request Forgery (CSRF) for perform remote arbitrary co

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HIGH 8.8DOWNGRADE

CVE-2020-23824 is a high-severity flaw (CVSS 8.8) affecting mail server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ArGo Soft Mail Server 1.8.8.9 is affected by Cross Site Request Forgery (CSRF) for perform remote arbitrary code execution. The component is the Administration dashboard. When using admin/user credentials, if the admin/user admin opens a website with the malicious page that will run the CSRF.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-352
Published	2020-09-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: argosoft

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

Am I affected?

Timeline

2020-09-11 21:15 UTCPublished CVE record published
2026-06-17 03:04 UTCUpdated Record last modified

argosoft mail server DOWNGRADE

Affected: 1.8.8.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8.8.9

1. Check installed version

apt-cache policy mail-server || rpm -q mail-server || mail-server --version

2. No fixed release: DOWNGRADE to a release before 1.8.8.9 (Debian / Ubuntu)

apt-cache madison mail-server sudo apt install mail-server=<VERSION_BEFORE_1.8.8.9> sudo apt-mark hold mail-server

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

dnf --showduplicates list mail-server sudo dnf downgrade mail-server-<VERSION_BEFORE_1.8.8.9> sudo dnf versionlock add mail-server

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-2020-23824?

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

Is CVE-2020-23824 being exploited?

CVE-2020-23824 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-2020-23824 affect?

CVE-2020-23824 affects mail server. Severity is high (CVSS 8.8). ArGo Soft Mail Server 1.8.8.9 is affected by Cross Site Request Forgery (CSRF) for perform remote arbitrary code execution. The component is the Administration dashboard. When using admin/user credentials, if the admin/user admin opens a we

How urgent is CVE-2020-23824?

Priority 53/100. High severity; Public exploit reference

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References

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