CVE-2024-43156: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in A

Q: How do I fix CVE-2024-43156?

post grid master: upgrade to 3.4.11. Exact commands for each OS are on this page.

Q: Is CVE-2024-43156 being exploited?

CVE-2024-43156 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-43156 affect?

CVE-2024-43156 affects post grid master. Severity is high (CVSS 7.1). Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in AddonMaster Post Grid Master allows Reflected XSS.This issue affects Post Grid Master: from n/a through 3.4.10.

Routine

HIGH 7.1UPGRADE

CVE-2024-43156 is a high-severity flaw (CVSS 7.1) affecting post grid master. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in AddonMaster Post Grid Master allows Reflected XSS.This issue affects Post Grid Master: from n/a through 3.4.10.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-08-12
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: addonmaster

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

Am I affected?

Timeline

2024-08-12 22:15 UTCPublished CVE record published
2026-06-17 07:50 UTCUpdated Record last modified

addonmaster post grid master UPGRADE

Affected: < 3.4.11

Fixed in: 3.4.11

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy post-grid-master || rpm -q post-grid-master || post-grid-master --version

2. UPGRADE to 3.4.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade post-grid-master

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade post-grid-master

Note

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

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-2024-43156?

post grid master: upgrade to 3.4.11. Exact commands for each OS are on this page.

Is CVE-2024-43156 being exploited?

CVE-2024-43156 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-2024-43156 affect?

CVE-2024-43156 affects post grid master. Severity is high (CVSS 7.1). Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in AddonMaster Post Grid Master allows Reflected XSS.This issue affects Post Grid Master: from n/a through 3.4.10.

How urgent is CVE-2024-43156?

Priority 30/100. High severity

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References

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