CVE-2026-48867Network attack vector

Stored XSS via unsanitized rich-answer markup

Published Jun 15, 2026 · Updated Jun 15, 2026

Stored cross-site scripting in Quiz and Survey Master 11.1.2 and earlier allows remote attackers to inject scripts through rich-answer questions. The rich-answer rendering path accepts attacker-supplied answer markup without sufficient sanitization or context-appropriate output escaping, causing stored content to execute in a visitor's browser. No account is required, but a user must view an affected quiz page; script execution occurs in that user's site context and can affect displayed content or session-accessible data.

CVSS severity7.1
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Quiz and Survey Master 11.1.2 and earlier allows remote attackers to inject scripts through rich-answer questions. The rich-answer rendering path accepts attacker-supplied answer markup without sufficient sanitization or context-appropriate output escaping, causing stored content to execute in a visitor's browser. No account is required, but a user must view an affected quiz page; script execution occurs in that user's site context and can affect displayed content or session-accessible data.

The record

CVE
CVE-2026-48867
Published
Jun 15, 2026
Updated
Jun 15, 2026
Vendor
ExpressTech Systems
Product
Quiz and Survey Master
Classifications
CWE-79, CAPEC-588, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=11.1.2 changes=[{"at":"11.1.3","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ExpressTech Systems · Quiz and Survey Masterversion=n/a <=11.1.2 changes=[{"at":"11.1.3","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-588DOM-Based XSS
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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