CVE-2026-47173
CVE-2026-47173 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-116.
Key facts
- Severity: Medium (CVSS 4.0 base score 6.3)
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-36274
- Weakness: CWE-116
- Published:
- Last modified:
Description
Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.3, a normal user can create a ticket with a reason containing @everyone, @here, user mentions, or role mentions. When the ticket is created, the bot posts the attacker-controlled reason into the new ticket channel without suppressing mentions. If the bot has permission to use those mentions, the attacker can make the bot ping staff or everyone with access to the ticket channel. This issue has been patched in version 1.0.3.
Frequently asked questions
- What is CVE-2026-47173?
- Quest Bot is an opensource modern Discord Bot built for moderation, utilities and support. Prior to version 1.0.3, a normal user can create a ticket with a reason containing @everyone, @here, user mentions, or role mentions. When the ticket is created, the bot posts the attacker-controlled reason into the new ticket channel without suppressing mentions. If the bot has permission to use those mentions, the attacker can make the bot ping staff or everyone with access to the ticket channel. This issue has been patched in version 1.0.3.
- How severe is CVE-2026-47173?
- CVE-2026-47173 has a CVSS 4.0 base score of 6.3, rated medium severity.
- Is CVE-2026-47173 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-47173?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-47173 have an EU (EUVD) identifier?
- Yes. CVE-2026-47173 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36274.
- When was CVE-2026-47173 published?
- CVE-2026-47173 was published on 2026-06-11 and last updated on 2026-06-17.
References
- https://github.com/duck-organization/questbot/releases/tag/questbot-v1.0.3
- https://github.com/duck-organization/questbot/security/advisories/GHSA-27xg-395c-xfcx
Other CWE-116 vulnerabilities
- CVE-2025-55730 — Critical (CVSS 10.0): XWiki Remote Macros provides XWiki rendering macros that are useful when migrating content from Confluence. Starting in…
- CVE-2025-55729 — Critical (CVSS 10.0): XWiki Remote Macros provides XWiki rendering macros that are useful when migrating content from Confluence. Starting in…
- CVE-2023-47143 — Critical (CVSS 10.0): IBM Tivoli Application Dependency Discovery Manager 7.3.0.0 through 7.3.0.10 is vulnerable to HTTP header injection,…
- CVE-2023-26472 — Critical (CVSS 9.9): XWiki Platform is a generic wiki platform. Starting in version 6.2-milestone-1, one can execute any wiki content with…
- CVE-2022-41934 — Critical (CVSS 9.9): XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with…
- CVE-2022-36100 — Critical (CVSS 9.9): XWiki Platform Applications Tag and XWiki Platform Tag UI are tag applications for XWiki, a generic wiki platform.…