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CVE-2021-33031

15
FAUCET Score

CVE-2021-33031 affects LabCup versions prior to v2_next_18022, allowing an authenticated, low-privileged user to change another user's email address via the save API. This vulnerability has a CVSS score of 3.1 (Low), indicating a network-based attack with high attack complexity and low impact on integrity, requiring specific knowledge of the victim's account details. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< v2_next_18022CPE matchmatch criteria
cpe:2.3:a:labcup:labcup:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.1LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 14th percentile among its peer group of 1,638 CVEs.

Social Chatter

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

Remediation

Remediation records are not available for this CVE.

References

github.com / Accenture/AARO-Bugs/blob/master/AARO-CVE-List.md
Third Party Advisory
labcup.net / privacy-data-security
Vendor Advisory