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CVE-2026-27177

21
FAUCET Score

CVE-2026-27177 is a stored cross-site scripting (XSS) vulnerability in MajorDoMo (aka Major Domestic Module) that allows unauthenticated attackers to inject malicious scripts. This occurs via the /objects/?op=set endpoint, where unsanitized user-supplied property values are stored and then rendered without escaping in the administrator panel, leading to XSS on page load. The vulnerability has a CVSS score of 6.1 (Medium), indicating it can be exploited remotely with low complexity, potentially leading to session hijacking due to the missing HttpOnly flag on session cookies. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:mjdm:majordomo:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.3MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
LOW
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
9.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 9th percentile among its peer group of 26,234 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

Remediation records are not available for this CVE.

References

chocapikk.com / posts/2026/majordomo-revisited
ExploitThird Party Advisory
github.com / sergejey/majordomo/pull/1177
ExploitIssue Tracking
vulncheck.com / advisories/majordomo-stored-cross-site-scripting-via-property-set-endpoint
Third Party Advisory