2.4
LowCVSS 3.0 · from hackerone
CVE-2026-77166
The emoji field in the page emoji update endpoint does not properly validate user input.
Collectives · CWE-840 · CWE-840AffectedCollectives
FixNo fix listed yet.
PublishedSep 21, 15:25 · hackerone
ScoredSep 21 · 2.4 · hackerone
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:07 UTC
What we know
No known exploitation. CISA KEV, checked 22:07 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker needs network access and an account. CVSS: network, high privileges.
Someone has to open, click or run something first. CVSS: user interaction required.
Description
The emoji field in the page emoji update endpoint does not properly validate user input. By injecting long text and line breaks, the sidebar layout becomes broken and can hide other items.
From hackerone
Affected and fixed versions
ProductAffectedFixed inCollectives3.2.1 – 3.5.0–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known