Security readout for executives and security teams
Plain-English summary
A low-privileged attacker could save malicious script content in certain Adobe Experience Manager form fields. The script may run when another user views the affected page, potentially exposing browser-accessible information or allowing actions in that user’s session. A victim must visit the page, and the supplied sources do not report active exploitation.
Executive priority
Schedule prompt remediation through normal vulnerability management, prioritizing internet-facing or broadly accessed AEM sites with delegated content editing. Escalate if suspicious stored content is discovered. Current evidence supports moderate urgency, not an emergency response based solely on known exploitation.
Technical view
CVE-2026-27252 is stored cross-site scripting (CWE-79) in Adobe Experience Manager 6.5.23 and earlier. Exploitation is network-accessible, requires low privileges and victim interaction, and can cross a security boundary. CVSS 3.1 is 5.4, with limited confidentiality and integrity impact and no availability impact.
Likely exposure
Exposure is most likely where AEM 6.5.23 or earlier permits low-privileged users to populate vulnerable form fields viewed by other users. The bundle also lists Cloud Service and 6.5 LTS entries, but their exact affected ranges are unclear; confirm them against Adobe’s advisory.
Exploitation context
The attacker must have low-level access to store content, and a victim must browse to the affected page. Successful exploitation executes JavaScript in the victim’s browser. The CVE is not listed as KEV, and the supplied evidence does not establish public or active exploitation.
Researcher notes
The vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. The bundle clearly identifies AEM 6.5.23 and earlier, but does not precisely explain the Cloud Service and 6.5 LTS version notation. Consult Adobe before declaring those deployment models affected or fixed.
Mitigation direction
- Inventory AEM deployments and identify installations running version 6.5.23 or earlier.
- Consult Adobe advisory APSB26-24 for the applicable fixed release or Cloud Service update.
- Upgrade affected deployments to an Adobe-confirmed unaffected version.
- Restrict form-content editing privileges until remediation is complete.
- Review stored form content for unexpected scripts or markup.
Validation and detection
- Record each deployment’s exact AEM version, service model, and patch level.
- Compare deployed versions with Adobe advisory APSB26-24.
- Confirm low-privileged roles cannot store executable content in affected fields after remediation.
- Inspect relevant pages and stored form content for suspicious modifications.
- Verify security monitoring shows no unexplained content changes by low-privileged accounts.
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-2026-27252 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
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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.
SSVC decision data
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:L/UI:R/S:C/C:L/I:L/A:N2.32.7adobeVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/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://helpx.adobe.com/security/products/experience-manager/apsb26-24.htmlCVE reference, adobe · vendor-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.