01 Record
CVE-2026-78187
Piwigo Public Authentication cross site scripting
LowPUBLISHEDCNA: VulDB
CNA base score2.3 CVSS v4.0CVSS: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
02 Description
Piwigo Public Authentication cross site scripting
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.65% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 50.8% of scored records. A rank, not a probability.
- NVD base score
- 1.3 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD 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/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
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-14.
- 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.
04 Metadata
- Published
- 2026-08-24 04:30Z2 MO AGO
- Last updated
- 2026-08-24 16:36Z2 MO 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
- Data version
- 5.2
- Document digest
- b307cae658822f67d596c508ee1160ac8226b8f244a29d477e1817147c61b65a
05 Affected products
VendorProductVersionsPlatforms
06 References
- vuldb.comVDB-394569 | Piwigo Public Authentication cross site scriptinghttps://vuldb.com/vuln/394569
- vuldb.comVDB-394569 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/394569/cti
- vuldb.comCVE-2026-78187 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-78187
- vuldb.comSubmit #885228 | Piwigo 16.3.0 Cross Site Scriptinghttps://vuldb.com/submit/885228
- github.comhttps://github.com/Piwigo/Piwigo/security/advisories/GHSA-rr39-mf4j-6594
- github.comhttps://github.com/Leousum/VulnPoC/blob/main/Piwigo%2016.3.0/reflected_XSS.md
- github.comhttps://github.com/Piwigo/Piwigo/commit/5277a7dee4b8f1a174f1d69e1e2a4e1c82a3fc9e
- github.comhttps://github.com/Piwigo/Piwigo/releases/tag/16.4.0
- github.comhttps://github.com/Piwigo/Piwigo/