CVE-2026-104356

HIGH 1 PoC
MEDIUM Priority: 0.03 BB Relevance: 86/100
Published: 2026-10-01 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
AT: None
VC: None
VI: None
VA: High

Description

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.

Affected Software (1)

VendorProductVersion
HaschekSolutions pictshare 2.0.0 < 3.7.1

Bug Bounty Relevance

86 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

8.2 / 10.0 v4.0
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 — Exploitation Probability

0.38%
Raw Score 0.003800
Percentile 32.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00380
2026-11-12
0.00380
2026-11-10
0.00380
2026-11-09
0.00380
2026-11-08
0.00380

Intelligence Sources

mitre ref →