Security readout for executives and security teams
Plain-English summary
CVE-2022-42747 is a cross-site scripting issue in CandidATS 3.0.0. An external attacker could cause a user to interact with malicious content and potentially steal that user’s cookies. Business impact is mainly account/session compromise and data exposure in affected recruitment systems.
Executive priority
Treat as a moderate-priority web application risk. It is not listed in KEV, but exposed recruitment systems can hold sensitive candidate and staff data, making timely inventory and vendor-guided remediation appropriate.
Technical view
The CVE describes CWE-79 XSS in the sortBy parameter of CandidATS 3.0.0 ajax.php. CVSS 3.1 is 6.1: network reachable, low complexity, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact.
Likely exposure
Exposure appears limited to organizations running CandidATS version 3.0.0, especially if the application is internet-facing and used by authenticated staff or applicants. The source bundle does not identify other affected versions or products.
Exploitation context
The CVE says an external attacker can steal arbitrary users’ cookies through XSS. KEV status is false, and the provided sources do not state active exploitation in the wild.
Researcher notes
Evidence is narrow but specific: CandidATS 3.0.0, ajax.php, sortBy, CWE-79, cookie theft impact. The supplied bundle does not provide exploit status, patch details, or affected-version range beyond 3.0.0.
Mitigation direction
- Identify any CandidATS deployments and confirm whether version 3.0.0 is running.
- Check CandidATS and Fluid Attacks guidance for a fixed version or workaround.
- Limit public access to affected recruitment portals until remediation is confirmed.
- Review application defenses for output encoding and input validation around ajax.php.
- Monitor for suspicious session activity involving recruitment portal users.
Validation and detection
- Inventory public and internal CandidATS instances and record their exact versions.
- Confirm whether ajax.php accepts sortBy input in deployed CandidATS 3.0.0 systems.
- Use safe XSS testing in staging to verify input handling without stealing cookies.
- Review web logs for unusual requests targeting ajax.php and sortBy.
- Verify remediation by retesting the same input path after vendor guidance is applied.
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-2022-42747 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
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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.
CVSS vector scores
1 official scoreWe 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:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://candidats.net/CVE reference
- https://fluidattacks.com/advisories/modestep/CVE reference
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.