Security readout for executives and security teams
Plain-English summary
Adobe Campaign 21.2.1 and earlier has a path traversal issue that can let an unauthenticated attacker read files from the server. The main business risk is exposure of sensitive configuration, credentials, customer data, or operational files stored on the affected system.
Executive priority
Treat this as a high-priority confidentiality risk for any exposed Adobe Campaign deployment. Prioritize inventory and vendor-guided remediation, especially where Campaign systems handle customer data, credentials, or integration secrets.
Technical view
CVE-2021-40745 is a CWE-22 path traversal vulnerability in Adobe Campaign. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Sources state an exposed XML file can be abused to enumerate other server files and read arbitrary files.
Likely exposure
Exposure is most likely where Adobe Campaign 21.2.1 or earlier is reachable over a network, especially if relevant XML resources are exposed. The source bundle does not identify affected deployment modes or specific components beyond Adobe Campaign.
Exploitation context
The provided data does not show CISA KEV listing or active exploitation. The vulnerability is still important because exploitation is unauthenticated, low complexity, and network reachable when the affected service is exposed.
Researcher notes
Evidence is limited to the CVE record and Adobe advisory reference. The source bundle identifies path traversal through an exposed XML file but does not provide exploit details, named patches, affected CPEs, or confirmed exploitation.
Mitigation direction
- Confirm whether any Adobe Campaign deployment is version 21.2.1 or earlier.
- Review Adobe APSB21-52 and apply vendor remediation guidance.
- Reduce external exposure to Adobe Campaign administrative or service interfaces where possible.
- Monitor for unexpected access to XML resources and sensitive local files.
Validation and detection
- Inventory Adobe Campaign versions across production, staging, and legacy environments.
- Check whether Adobe Campaign endpoints are reachable from untrusted networks.
- Review access logs for unusual XML file requests or file-enumeration patterns.
- Confirm remediation status against Adobe APSB21-52 guidance.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-40745 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/campaign/apsb21-52.htmlCVE reference · x_refsource_MISC
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.