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CVE Record

CVE-2020-24442: Reflected Cross-Site Scripting (XSS) in Adobe Connect

Adobe Connect version 11.0 (and earlier) is affected by a reflected Cross-Site Scripting (XSS) vulnerability. If an attacker is able to convince a victim to visit a URL referencing a vulnerable page, malicious JavaScript content may be executed within the context of the victim's browser.

MediumCVSS 6.1Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-24442 is a reflected cross-site scripting issue in Adobe Connect 11.0 and earlier. An attacker would need a user to open a crafted URL, which could run JavaScript in that user’s browser session. Business risk is mainly session misuse, data exposure, or user-facing trust damage, not direct server takeover.

Executive priority

Treat as a moderate-priority remediation item. It needs action where Adobe Connect remains on version 11.0 or earlier, but the known path requires user interaction and the provided sources do not show active exploitation.

Technical view

Adobe Connect 11.0 and earlier contain a CWE-79 reflected XSS vulnerability. CVSS 3.1 score is 6.1: network reachable, low attack complexity, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact.

Likely exposure

Exposure is limited to organizations running Adobe Connect 11.0 or earlier. Risk is higher where Connect pages are reachable by users over the internet or broadly inside the enterprise. The provided sources do not identify specific vulnerable pages or deployment configurations.

Exploitation context

The bundle does not indicate CISA KEV listing or cited active exploitation. Exploitation requires convincing a victim to visit a URL referencing a vulnerable Adobe Connect page, so phishing or social engineering would likely be part of any real-world attack path.

Researcher notes

The supplied evidence establishes product, version boundary, vulnerability class, CVSS, and user-interaction requirement. It does not provide endpoint details, exploit examples, or fixed-version specifics inside the bundle. Use Adobe APSB20-69 as the authoritative remediation source.

Mitigation direction

  • Inventory Adobe Connect deployments and confirm version numbers.
  • Review Adobe APSB20-69 for vendor remediation guidance.
  • Apply the Adobe-supported update or mitigation path from the advisory.
  • Reduce access to vulnerable Connect pages where business allows.
  • Warn users to avoid unexpected Adobe Connect links.

Validation and detection

  • Confirm whether any deployment runs Adobe Connect 11.0 or earlier.
  • Check change records for remediation aligned to APSB20-69.
  • Review access logs for unusual Adobe Connect URL patterns.
  • Run approved XSS validation after remediation, without using live users.
  • Document remaining systems awaiting vendor-guided remediation.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

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 lookup
cve · low confidence lookup

CVE-2020-24442 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
6.1CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.1Medium
CVSS 3.1 vector shape for CVE-2020-24442Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AdobeConnectunspecified, unspecifiedListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-79 · source CWE mapping

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.