CVE-2026-104356CWE-338

CVE-2026-104356

Medium · published October 2, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
22.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.2 · CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00309 · 22.5th percentile
Weakness
CWE-338 · Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Published
2026-10-02T02:17Z
References (3)
https://github.com/HaschekSolutions/pictshare/commit/ce5fc474e89769efeae25fee763894bcce3412e3 · [email protected]https://github.com/HaschekSolutions/pictshare/releases/tag/v3.7.1 · [email protected]https://www.vulncheck.com/advisories/pictshare-predictable-delete-code-via-rand · [email protected]
EPSS history
Timeline
  • 03 OCT 03:41Z
    EPSS moved — → 0%
    epss
  • 01 OCT 21:21Z
    PictShare < 3.7.1 Predictable Delete Code via rand()
    cvelistv5