CVE-2020-22274: JomSocial (Joomla Social Network Extention) 4.7.6 allows CSV injection via a customer's profile.

This month

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-22274 is a critical-severity flaw (CVSS 9.8) affecting jomsocial. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

JomSocial (Joomla Social Network Extention) 4.7.6 allows CSV injection via a customer's profile.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-1236
Published	2020-11-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: jomsocial

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

Am I affected?

Timeline

2020-11-04 18:15 UTCPublished CVE record published
2026-06-17 03:04 UTCUpdated Record last modified

jomsocial jomsocial DOWNGRADE

Affected: 4.7.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.7.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.7.6 (Debian / Ubuntu)

apt-cache madison jomsocial sudo apt install jomsocial=<VERSION_BEFORE_4.7.6> sudo apt-mark hold jomsocial

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

dnf --showduplicates list jomsocial sudo dnf downgrade jomsocial-<VERSION_BEFORE_4.7.6> sudo dnf versionlock add jomsocial

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-2020-22274?

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

Is CVE-2020-22274 being exploited?

CVE-2020-22274 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-2020-22274 affect?

CVE-2020-22274 affects jomsocial. Severity is critical (CVSS 9.8). JomSocial (Joomla Social Network Extention) 4.7.6 allows CSV injection via a customer's profile.

How urgent is CVE-2020-22274?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Joomla vulnerabilities

References

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