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CVE-2021-43765

21
FAUCET Score

CVE-2021-43765 is a stored Cross-Site Scripting (XSS) vulnerability affecting Adobe Experience Manager (AEM) Cloud Service and versions 6.5.10.0 and below. An attacker could inject malicious scripts into vulnerable form fields, leading to arbitrary JavaScript execution in a victim's browser upon viewing the compromised page. Rated Medium (CVSS 6.1), this vulnerability requires user interaction (UI:R) but can be exploited remotely (AV:N) with low attack complexity (AC:L), potentially resulting in limited confidentiality and integrity impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.5.10.0CPE matchmatch criteria
cpe:2.3:a:adobe:experience_manager:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:adobe:experience_manager_cloud_service:-:*:*:*:*:*:*:*
<= 6.5.10.0CPE match
cpe:2.3:a:adobe:experience_manager:*:*:*:*:aem_cloud_service:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 85th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

adobevendor investigatingvia nvd_reference
View patch

References

helpx.adobe.com / security/products/experience-manager/apsb21-103.html
Release NotesVendor Advisory