CVE-2026-19786Network attack vector

Unauthorized state changes via unverified modfunc requests

Published Aug 14, 2026 · Updated Aug 14, 2026

Cross-site request forgery in RosarioSIS 12.0 through 12.8 allows remote attackers to trigger state-changing actions through crafted links. Modules.php accepts the modfunc request parameter without reliably verifying request origin, while sanitized Markdown and HTML can preserve modfunc links. A logged-in user must follow the link for the request to run with that session's permissions; SameSite=Strict cookies block ordinary cross-site delivery but not same-site attacks.

CVSS severity5.3
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in RosarioSIS 12.0 through 12.8 allows remote attackers to trigger state-changing actions through crafted links. Modules.php accepts the modfunc request parameter without reliably verifying request origin, while sanitized Markdown and HTML can preserve modfunc links. A logged-in user must follow the link for the request to run with that session's permissions; SameSite=Strict cookies block ordinary cross-site delivery but not same-site attacks.

The record

CVE
CVE-2026-19786
Published
Aug 14, 2026
Updated
Aug 14, 2026
Vendor
François Jacquet
Product
RosarioSIS
Classifications
CWE-352, CWE-862, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.0
  2. Affected versionversion=12.1
  3. Affected versionversion=12.2
  4. Affected versionversion=12.3
  5. Affected versionversion=12.4
  6. Affected versionversion=12.5
  7. Affected versionversion=12.6
  8. Affected versionversion=12.7
  9. Affected versionversion=12.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

François Jacquet · RosarioSISversion=12.0; version=12.1; version=12.2; version=12.3; version=12.4; version=12.5; version=12.6; version=12.7; version=12.8

Published CVSS scores

4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CWE-862Missing Authorization
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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