High severity7.6NVD Advisory· Published Jun 18, 2026· Updated Aug 10, 2026

CVE-2026-55746

Description

Cotonti 1.0.0 (master branch, commit f43f1fc3) is vulnerable to stored Cross-Site Scripting in the Personal File Storage (PFS) module. A folder title (pff_title) is imported with the 'TXT' filter, which does not strip or encode HTML (the tag check in cot_import is disabled), so an authenticated user can store HTML/JavaScript in a folder title.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
cotonti/cotontiPackagist	<= 1.0.0	—

Affected products

Cotonti/Cotontillm-fuzzy

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-86hp-hf3j-3m8rghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-55746ghsaADVISORY
github.com/Cotonti/Cotonti/blob/f43f1fc38ba4e02027786dad9dac1435c7c52b30/modules/pfs/inc/pfs.main.phpnvdWEB

News mentions

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Severity

HighCVSS v3.1

7.6/ 10

CVSS v47.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector: Network
Complexity: Low
Privileges: Low
User interaction: Required
Scope: Changed
Confidentiality: High
Integrity: Low
Availability: None

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

Affected

Source repo: github.com/Cotonti/Cotonti

EPSS

Probability of exploitation in the next 30 days.

0.17%

VYPR risk score

Composite of severity, exploitation, and reach.

0.49medium

cvss	0.494
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVE ID

CVE-2026-55746

Credits

SM
Saidakbarxon Maxsudxonov (sermikro), Innova Networks
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