CVE-2024-8479: The The Simple Spoiler plugin for WordPress is vulnerable to arbitrary shortcode execution in versions 1.2 to

This month

HIGH 7.3REMOTEUPGRADE

CVE-2024-8479 is a high-severity flaw (CVSS 7.3) affecting simple spoiler. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The The Simple Spoiler plugin for WordPress is vulnerable to arbitrary shortcode execution in versions 1.2 to 1.3. This is due to the plugin adding the filter add_filter('comment_text', 'do_shortcode'); which will run all shortcodes in comments. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-94
Published	2024-09-14
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: webliberty

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

Am I affected?

Timeline

2024-09-14 04:15 UTCPublished CVE record published
2026-06-17 08:22 UTCUpdated Record last modified

webliberty simple spoiler UPGRADE

Affected: >= 1.2 and < 1.4

Fixed in: 1.4

Safe to downgrade to: a release before 1.2

1. Check installed version

apt-cache policy simple-spoiler || rpm -q simple-spoiler || simple-spoiler --version

2. UPGRADE to 1.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade simple-spoiler

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade simple-spoiler

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 1.2 (Debian / Ubuntu)

apt-cache madison simple-spoiler sudo apt install simple-spoiler=<VERSION_BEFORE_1.2> sudo apt-mark hold simple-spoiler

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

dnf --showduplicates list simple-spoiler sudo dnf downgrade simple-spoiler-<VERSION_BEFORE_1.2> sudo dnf versionlock add simple-spoiler

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-2024-8479?

simple spoiler: upgrade to 1.4. Exact commands for each OS are on this page.

Is CVE-2024-8479 being exploited?

CVE-2024-8479 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-2024-8479 affect?

CVE-2024-8479 affects simple spoiler. Severity is high (CVSS 7.3). The The Simple Spoiler plugin for WordPress is vulnerable to arbitrary shortcode execution in versions 1.2 to 1.3. This is due to the plugin adding the filter add_filter('comment_text', 'do_shortcode'); which will run all shortcodes in comm

How urgent is CVE-2024-8479?

Priority 42/100. High severity; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

References

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