CVE-2026-77166

lowpriority · track · 0EPSS 0.003 · 21 %ileDE
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.28% (21st) EPSS
CVSS 2.4 · low
Is it mine?
2 products
Check your exposure
Who says so?
1 sources
cert_bund

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

2.4
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.02.4lowCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:Nsecondary · support@hackerone.comexploitability 0.9 · impact 1.4
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-840US
04

affected products (2)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-3840Nextcloud: Mehrere SchwachstellenDeutsch2026-10-08csaf · cert_bundDE

    Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen im Nextcloud Server und verschiedenen Apps ausnutzen, um Informationen offenzulegen, um Sicherheitsmechanismen zu umgehen und um einen Denial of Service herbeizuführen.

06

sources

Which sources assert this record, and when.

cert_bundNVDCVE.orgMITRE
published 2026-09-21modified 2026-09-22
07

references (1) nvd

External citations — patches, advisories, analysis.

scry

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