Dashboard / CVE-2026-121413

CVE-2026-121413

LOW
INFO Priority: 0.01 BB Relevance: 55/100
Published: 2026-11-03 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: X
AT: Present
VC: None
VI: Low
VA: None

Description

Parse Server before 8.6.112 and 9.0.0 before 9.10.6-alpha.4 contains an authorization bypass in the session upgrade endpoint, which creates a new session for any valid session token without enforcing the _Session class create class-level permission. Attackers holding a user's session token can send an already revocable token to /upgradeToRevocableSession to obtain additional sessions with fresh expiration that persist after the original session is logged out.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
parse-community parse-server 9.0.0 < 9.10.6-alpha.4
parse-community parse-server 0 < 8.6.112
parse-community parse-server 9.0.0 < 9.10.6-alpha.4
parse-community parse-server 0 < 8.6.112

References & Advisories (4)

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

2.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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

EPSS — Exploitation Probability

0.31%
Raw Score 0.003120
Percentile 24.5%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00312
2026-11-13
0.00312
2026-11-12
0.00312
2026-11-10
0.00312
2026-11-09
0.00312
2026-11-08
0.00312
2026-11-07
0.00312
2026-11-06
0.00312
2026-11-05
0.00312
2026-11-04
0.00312

Intelligence Sources

mitre ref →
nvd ref →

External Links