Security readout for executives and security teams
Plain-English summary
Open ISES Tickets versions before 3.44.2 can place untrusted link content into a webpage without safely encoding it. If a user follows a crafted link, attacker-controlled script may run in that user’s browser, potentially enabling actions or data access within the user’s session.
Executive priority
Schedule prompt remediation through the normal vulnerability process, prioritizing externally reachable systems and deployments used by privileged staff. This is not supported as an emergency-level threat, but user-session impact and low attack complexity justify timely upgrading and exposure review.
Technical view
CVE-2026-35012 is reflected cross-site scripting in add_facnote.php. The ticket_id GET parameter is inserted unsanitized into a hidden input value attribute. Exploitation requires victim interaction. The bundle conflicts on privileges: its description says authenticated attackers, while CVSS 4.0 records PR:N.
Likely exposure
Exposure exists where Open ISES Tickets earlier than 3.44.2 is deployed and users can be induced to visit crafted links. Internet-accessible instances and privileged users increase practical risk. The supplied affected-version metadata also lists version “0,” so confirm applicability against the vendor release and patch.
Exploitation context
The supplied CVSS score is 5.1 and requires active user interaction. The source bundle says this CVE is not in KEV and provides no evidence of active exploitation. Successful abuse could affect confidentiality and integrity within the victim browser’s security context, without direct server availability impact.
Researcher notes
CWE-79 applies. The relevant data flow is ticket_id from the query string into a hidden input value attribute. Researchers should verify output encoding in the patched code and surrounding contexts. Treat the authentication requirement as unresolved because the narrative and CVSS privileges metric disagree.
Mitigation direction
- Upgrade Open ISES Tickets to version 3.44.2 or later.
- Review the referenced vendor patch before deploying it.
- Restrict untrusted access to the application while remediation is pending.
- Warn users not to follow unexpected Open ISES Tickets links.
Validation and detection
- Inventory Open ISES Tickets deployments and record their exact versions.
- Confirm every deployment runs version 3.44.2 or later.
- Verify ticket_id is safely encoded before entering HTML attributes.
- Review web logs for unusual add_facnote.php ticket_id requests.
- Perform an authorized, non-destructive regression test using benign special characters.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-35012 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.1 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N——VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N2.12.5VulnCheckVulnerability scoring details
Base CVSS 4.0 score
5.1MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Base CVSS 3.1 score
4.6MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/openises/tickets/releases/tag/v3.44.2CVE reference, VulnCheck · release-notes
- https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbffCVE reference, VulnCheck · patch
- https://www.vulncheck.com/advisories/open-ises-tickets-reflected-xss-via-add-facnote-php-ticket-id-parameterCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.