Vulnerability in Hascheksolutions Pictshare
CVE-2026-104356
PictShare before version 3.7.1 contains a weak randomness vulnerability where the getRandomString() function uses the non-cryptographic rand() PRNG to generate the delete_code authorization token in src/inc/core.php. Attackers can predict or infer the PRNG state to guess valid delete_code values and perform unauthorized deletion of hosted files without needing to read the code from the info endpoint.
Published .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/HaschekSolutions/pictshare/commit/ce5fc474e89769efeae25fee763894bcce… (release-notes, issue-tracking)
- github.com/HaschekSolutions/pictshare/releases/tag/v3.7.1 (patch)
- www.vulncheck.com/advisories/pictshare-predictable-delete-code-via-rand (third-party-advisory)
Frequently asked questions
- What is CVE-2026-104356?
- CVE-2026-104356 is a medium-severity vulnerability in Hascheksolutions Pictshare, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 5.9/10. Published 2026-10-01.
- How severe is CVE-2026-104356?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2026-104356 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.