CVE-2026-42323

HIGHPre-NVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (28th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.2Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Piwigo is a full featured open source photo gallery application for the web. Prior to 16.4.0, admin/batch_manager.php accepts administrator-controlled dimension width, height, and ratio values and filesize values from the Batch Manager filter URL without numeric validation. The URL filter parser stores those values in the bulk_manager_filter session state, and later query construction concatenates them into SQL predicates, unlike the validated POST filter path. An authenticated administrator can use crafted filter values to execute time-based or other SQL expressions and potentially disclose, modify, or disrupt database data. This issue is fixed in version 16.4.0.

CVSS v3
7.2
EG Score
7.2HIGHmedium confidence
EG Risk
48
EG Risk 48/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity72% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
28th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 25, 2026

Last Modified

September 28, 2026

Advisory Details (4)

Auto-updated Sep 25, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

16.4.0

Patch available: Piwigo/Piwigo 16.4.0

https://github.com/Piwigo/Piwigo/releases/tag/16.4.0
github_commit Patch Available

commit e4f0989d350d (Piwigo/Piwigo)

Patch available: Piwigo/Piwigo 16.4.0 (contains commit e4f0989d350d)

https://github.com/Piwigo/Piwigo/commit/e4f0989d350d66207066ea61f8ee8c137164fb2f
github_commit

commit c7e30da5c177 (Piwigo/Piwigo)

Fix landed in Piwigo/Piwigo commit c7e30da5c177 — awaiting tagged release

https://github.com/Piwigo/Piwigo/commit/c7e30da5c1775b531ce9a30aac04134cd714b472
github Patch Available🟡 PoC Available

SQL Injection in Batch Manager · Advisory · Piwigo/Piwigo · GitHub

https://github.com/Piwigo/Piwigo/security/advisories/GHSA-7r67-9xhq-7p2c

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-05 00:46 UTCEG score recompute
  2. 2026-10-04 23:22 UTCEPSS rescore
  3. 2026-10-04 01:09 UTCEG score recompute
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 01:36 UTCEG score recompute
  6. 2026-10-02 01:59 UTCEG score recompute
  7. 2026-10-01 19:50 UTCEPSS rescore
  8. 2026-10-01 02:26 UTCEG score recompute
  9. 2026-09-30 15:03 UTCEPSS rescore
  10. 2026-09-30 02:53 UTCEG score recompute
  11. 2026-09-29 03:20 UTCEG score recompute
  12. 2026-09-28 15:33 UTCEG score recompute
  13. 2026-09-28 14:42 UTCEG score recompute
  14. 2026-09-27 15:38 UTCEG score recompute
  15. 2026-09-27 13:48 UTCEPSS rescore
  16. 2026-09-26 16:04 UTCEG score recompute
  17. 2026-09-26 15:58 UTCEPSS rescore
  18. 2026-09-25 16:26 UTCEG score recompute
  19. 2026-09-25 15:44 UTCEG score recompute
  20. 2026-09-25 15:44 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-42323?
CVE-2026-42323 is a high vulnerability published on September 25, 2026. Piwigo is a full featured open source photo gallery application for the web. Prior to 16.4.0, admin/batchmanager.php accepts administrator-controlled dimension width, height, and ratio values and filesize values from the Batch Manager filter URL without numeric validation. The URL filter parser…
When was CVE-2026-42323 disclosed?
CVE-2026-42323 was first published on September 25, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42323 actively exploited?
CVE-2026-42323 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (28th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-42323?
CVE-2026-42323 has a CVSS base score of 7.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-42323?
A fix for CVE-2026-42323 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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