NASA Open MCT Cross Site Scripting vulnerability

published 2023-11-09 3 y ago modified 2026-06-17 4 mo ago also GHSA-v8fc-qxvj-f3mg , EUVD-2023-3040

cvss: 5.4; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits: 0; none known

Cross Site Scripting (XSS) vulnerability in NASA Open MCT (aka openmct) through 3.1.0 allows attackers to run arbitrary code via the new component feature in the flexibleLayout plugin.

Patch / fix

links 2

github.com/nasa/openmct#7148 commit
github.com/nasa/openmct#7148 pull request

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-09-04)

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

linkedin.com https://www.linkedin.com/pulse/xss-nasas-open-mct-v302-visionspace-technologies-ubg4f referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
GitHub	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
npm	openmct	<=3.1.0	no fix listed

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /nasa/openmct/pull/7148
web
github.com /nasa/openmct/pull/7148/commits/4e95e12559c9c5364269ff366a59768573baacb4
web
linkedin.com /pulse/xss-nasas-open-mct-v302-visionspace-technologies-ubg4f
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2023-45885
advisory
github.com /nasa/openmct
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary