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VulnerabilityPublished

CVE-2026-24415: devcode-it openstamanager · Cross-site Scripting

Affects devcode-it openstamanagerSource CVE Database V5

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Not known to be exploited · CVSS 5.1 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
devcode-itopenstamanagerAffected
  • <=2.9.8
Fixed in–
GitHubdevcode-it/openstamanagerpkg:github/devcode-it/openstamanagerOther threatsAffected
  • <=2.9.8
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate this vulnerability, organizations should immediately update OpenSTAManager to a version that properly sanitizes and encodes user input, if such a patch is available. In the absence of an official patch, implement the following specific measures: 1) Apply strict input validation on the 'righe' GET parameter to allow only expected characters or numeric values. 2) Use proper output encoding functions such as htmlspecialchars() with appropriate flags to escape user input before embedding it into HTML attributes. 3) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts. 4) Educate users to avoid clicking suspicious links and implement email filtering to reduce phishing attempts. 5) Monitor web server logs for unusual requests targeting the vulnerable parameters. 6) Consider deploying Web Application Firewalls (WAFs) with rules to detect and block reflected XSS payloads targeting OpenSTAManager endpoints. These targeted mitigations go beyond generic advice by focusing on the specific vulnerable parameter and context.

Description

OpenSTAManager is an open source management software for technical assistance and invoicing. OpenSTAManager v2.9.8 and earlier contains Reflected XSS vulnerabilities in invoice/order/contract modification modals. The application fails to properly sanitize user-supplied input from the righe GET parameter before reflecting it in HTML output.The $_GET['righe'] parameter is directly echoed into the HTML value attribute without any sanitization using htmlspecialchars() or equivalent functions. This allows an attacker to break out of the attribute context and inject arbitrary HTML/JavaScript.

References

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