CVE-2026-78187

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

Not scored by EPSS

EPSS percentile

Not scored by EPSS

NVD base score

The NVD has published no score for this record

NVD CVSS vector

No NVD score to derive

NVD analysis status

Not recorded

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-24 04:30Z58 MIN AGO

Last updated

2026-08-24 04:30Z58 MIN AGO

Reserved

2026-08-23

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Low (CVSS 2.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
• CWE-94Improper Control of Generation of Code ('Code Injection')Base

Data version

5.2

Document digest

8bcebafa92e70c34885dc8855882b64c802f45d0ef556bc65fbabd4803db92b1

• vuldb.comVDB-394569 | Piwigo Public Authentication cross site scriptinghttps://vuldb.com/vuln/394569vdb-entrytechnical-description
• vuldb.comVDB-394569 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/394569/ctisignaturepermissions-required
• vuldb.comCVE-2026-78187 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-78187third-party-advisory
• vuldb.comSubmit #885228 | Piwigo 16.3.0 Cross Site Scriptinghttps://vuldb.com/submit/885228third-party-advisory
• github.comhttps://github.com/Piwigo/Piwigo/security/advisories/GHSA-rr39-mf4j-6594related
• github.comhttps://github.com/Leousum/VulnPoC/blob/main/Piwigo%2016.3.0/reflected_XSS.mdexploit
• github.comhttps://github.com/Piwigo/Piwigo/commit/5277a7dee4b8f1a174f1d69e1e2a4e1c82a3fc9epatch
• github.comhttps://github.com/Piwigo/Piwigo/releases/tag/16.4.0patch
• github.comhttps://github.com/Piwigo/Piwigo/product