CVE-2024-26495: Cross Site Scripting (XSS) vulnerability in Friendica versions after v.2023.12, allows a remote attacker to ex

Routine

MEDIUM 6.1UPGRADE

CVE-2024-26495 is a medium-severity flaw (CVSS 6.1) affecting friendica. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross Site Scripting (XSS) vulnerability in Friendica versions after v.2023.12, allows a remote attacker to execute arbitrary code and obtain sensitive information via the BBCode tags in the post content and post comments function.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-04-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: friendica

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

Am I affected?

Timeline

2024-04-03 03:15 UTCPublished CVE record published
2026-06-17 07:17 UTCUpdated Record last modified

friendica friendica UPGRADE

Affected: >= 2023.12 and < 2024.03

Fixed in: 2024.03

Safe to downgrade to: a release before 2023.12

1. Check installed version

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

2. UPGRADE to 2024.03 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade friendica

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade friendica

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2023.12 (Debian / Ubuntu)

apt-cache madison friendica sudo apt install friendica=<VERSION_BEFORE_2023.12> sudo apt-mark hold friendica

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list friendica sudo dnf downgrade friendica-<VERSION_BEFORE_2023.12> sudo dnf versionlock add friendica

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-2024-26495?

friendica: upgrade to 2024.03. Exact commands for each OS are on this page.

Is CVE-2024-26495 being exploited?

CVE-2024-26495 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-2024-26495 affect?

CVE-2024-26495 affects friendica. Severity is medium (CVSS 6.1). Cross Site Scripting (XSS) vulnerability in Friendica versions after v.2023.12, allows a remote attacker to execute arbitrary code and obtain sensitive information via the BBCode tags in the post content and post comments function.

How urgent is CVE-2024-26495?

Priority 37/100. Public exploit reference

Related CVEs

CVE-2024-39094 MEDIUM 5.4 DOWNGRADE Friendica 2024.03 is vulnerable to Cross Site Scripting (XSS) in settings/profile via the homepage, xmpp, and
CVE-2024-27731 MEDIUM 6.1 DOWNGRADE Cross Site Scripting vulnerability in Friendica v.2023.12 allows a remote attacker to obtain sensitive informa
CVE-2024-27730 CRITICAL 9.8 DOWNGRADE Insecure Permissions vulnerability in Friendica v.2023.12 allows a remote attacker to obtain sensitive informa
CVE-2024-27729 MEDIUM 6.1 DOWNGRADE Cross Site Scripting vulnerability in Friendica v.2023.12 allows a remote attacker to obtain sensitive informa
CVE-2024-27728 MEDIUM 6.1 DOWNGRADE Cross Site Scripting vulnerability in Friendica v.2023.12 allows a remote attacker to obtain sensitive informa

References

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