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CVE-2021-21009

26
FAUCET Score

CVE-2021-21009 is a high-severity Server-Side Request Forgery (SSRF) vulnerability affecting multiple versions of Adobe Campaign Classic Gold Standard. This flaw allows an unauthenticated attacker to force the Campaign instance to make unauthorized requests to internal or external resources. With a CVSS score of 8.6, it presents a significant risk due to its network-based attack vector and low complexity, potentially leading to high confidentiality impact. Despite its severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10CPE matchmatch criteria
cpe:2.3:a:adobe:campaign_classic:*:*:*:*:gold_standard:*:*:*
<= 19.1.7CPE matchmatch criteria
cpe:2.3:a:adobe:campaign_classic:*:*:*:*:*:*:*:*
>= 19.2, <= 19.2.3CPE matchmatch criteria
cpe:2.3:a:adobe:campaign_classic:*:*:*:*:*:*:*:*
>= 20.1, <= 20.1.3CPE matchmatch criteria
cpe:2.3:a:adobe:campaign_classic:*:*:*:*:*:*:*:*
>= 20.2, <= 20.2.3CPE matchmatch criteria
cpe:2.3:a:adobe:campaign_classic:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.20%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0320 is in the 76th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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/campaign/apsb21-04.html
Vendor Advisory