CVE-2026-7713

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 19.4% of scored records. A rank, not a probability.

NVD base score

2.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-05-04 00:00Z4 MO AGO

Last updated

2026-05-05 19:00Z4 MO AGO

Reserved

2026-05-03

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-266Incorrect Privilege AssignmentBase
• CWE-285Improper AuthorizationClass

Data version

5.2

Document digest

b4f9cd5d0afa503f9d62f664ee1da086d25dbbdccd1a976ce46c2482858447f0

• vuldb.comVDB-360889 | crocodilestick Calibre-Web-Automated Kobo auth-token Route kobo_auth.py generate_auth_token improper authorizationhttps://vuldb.com/vuln/360889vdb-entrytechnical-description
• vuldb.comVDB-360889 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/360889/ctisignaturepermissions-required
• vuldb.comSubmit #806403 | crocodilestick Calibre-Web-Automated v1.0.0-v4.0.6 IDOR in auth-token generation leading to account takeoverhttps://vuldb.com/submit/806403third-party-advisory
• github.comhttps://github.com/crocodilestick/Calibre-Web-Automated/issues/1303issue-tracking
• github.comhttps://github.com/new-usemame/Calibre-Web-NextGen/pull/18issue-trackingpatch
• gist.github.comhttps://gist.github.com/menelausx/ef98aa78ed2869ccaa316ff45ed1a440exploit
• github.comhttps://github.com/new-usemame/Calibre-Web-NextGen/commit/9f50bb2c16160564c9f8777dc2ceed3eb95e4807patch
• github.comhttps://github.com/new-usemame/Calibre-Web-NextGen/releases/tag/v4.0.7patch
• github.comhttps://github.com/crocodilestick/Calibre-Web-Automated/product