CVE-2024-8758: The Quiz and Survey Master (QSM) WordPress plugin before 9.1.3 does not sanitise and escape some of its setti

Q: How do I fix CVE-2024-8758?

quiz and survey master: upgrade to 9.1.3. Exact commands for each OS are on this page.

Q: Is CVE-2024-8758 being exploited?

CVE-2024-8758 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-2024-8758 affect?

CVE-2024-8758 affects quiz and survey master. Severity is medium (CVSS 4.8). The Quiz and Survey Master (QSM) WordPress plugin before 9.1.3 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_

Q: How urgent is CVE-2024-8758?

Priority 25/100. No elevated risk signals yet.

Routine

MEDIUM 4.8UPGRADE

CVE-2024-8758 is a medium-severity flaw (CVSS 4.8) affecting quiz and survey master. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Quiz and Survey Master (QSM) WordPress plugin before 9.1.3 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-09-23
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: expresstech

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

Am I affected?

Timeline

2024-09-23 06:15 UTCPublished CVE record published
2026-06-17 08:23 UTCUpdated Record last modified

expresstech quiz and survey master UPGRADE

Affected: < 9.1.3

Fixed in: 9.1.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy quiz-and-survey-master || rpm -q quiz-and-survey-master || quiz-and-survey-master --version

2. UPGRADE to 9.1.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade quiz-and-survey-master

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade quiz-and-survey-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-2024-8758?

quiz and survey master: upgrade to 9.1.3. Exact commands for each OS are on this page.

Is CVE-2024-8758 being exploited?

CVE-2024-8758 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-2024-8758 affect?

CVE-2024-8758 affects quiz and survey master. Severity is medium (CVSS 4.8). The Quiz and Survey Master (QSM) WordPress plugin before 9.1.3 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_

How urgent is CVE-2024-8758?

Priority 25/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities

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References

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