CVE-2019-9650 — An XSS issue was discovered in upcoming_events

An XSS issue was discovered in upcoming_events.php in the Upcoming Events plugin before 1.33 for MyBB via a crafted name for an event.

01What is this vulnerability?

An XSS issue was discovered in upcoming_events.php in the Upcoming Events plugin before 1.33 for MyBB via a crafted name for an event.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-03-11T01:00:00.000Z
• Last modified: 2024-08-04T21:54:45.457Z

09References

• community.mybb.com — https://community.mybb.com/mods.php?action=changelog&pid=1231
• github.com — https://github.com/vintagedaddyo/MyBB_Plugin-Upcoming_Events/pull/1/commits/d0a0…
• www.exploit-db.com — https://www.exploit-db.com/exploits/46558/
• packetstormsecurity.com — http://packetstormsecurity.com/files/152152/MyBB-Upcoming-Events-1.32-Cross-Site…