CVE-2026-19904

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

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 11.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/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 2026-08-20.

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

2026-08-15 18:00Z20 DAYS AGO

Last updated

2026-08-18 13:38Z17 DAYS AGO

Reserved

2026-08-14

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
• CWE-94Improper Control of Generation of Code ('Code Injection')Base

Data version

5.2

Document digest

ccccf890d2bc3da5711974ab7ad224b2d1b079cc497265f1f8ba36a79ec7c8aa

• vuldb.comVDB-390097 | SourceCodester Online Book Store System System Settings index.php site_settings cross site scriptinghttps://vuldb.com/vuln/390097vdb-entry
• vuldb.comVDB-390097 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/390097/ctisignaturepermissions-required
• vuldb.comCVE-2026-19904 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-19904third-party-advisory
• vuldb.comSubmit #870786 | SourceCodester Online Book Store System 1.0 Stored Cross Site Scripting (Stored XSS)https://vuldb.com/submit/870786third-party-advisory
• medium.comhttps://medium.com/@hemantrajbhati5555/stored-cross-site-scripting-xss-in-system-settings-module-fa4f99ed1544broken-linkexploit
• www.sourcecodester.comhttps://www.sourcecodester.com/product