Bagisto Custom Scripts cross site scripting

published 2026-04-21 6 mo ago modified 2026-06-17 4 mo ago also GHSA-65fp-7g2v-658r , EUVD-2026-24243

cvss: 3.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

A vulnerability was determined in Bagisto up to 2.3.15. Affected by this vulnerability is an unknown functionality of the component Custom Scripts Handler. This manipulation causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure and explains: "We already replied on the github advisories. All the security issues are addressed through security advisory. We will fix this in our upcomming releases."

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 6 mo ago (2026-04-21)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

drive.google.com https://drive.google.com/drive/folders/10p6SYcSVyfaaTg_dgItzMJvqixcmKnHR?usp=sharing referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
CNA	3.0	3.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
CNA	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:C
CNA	4.0	2.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N
GitHub	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	bagisto/bagisto	<=2.3.15	no fix listed

Affected products

n/a Bagisto

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-94 Improper Control of Generation of Code

References

drive.google.com /drive/folders/10p6SYcSVyfaaTg_dgItzMJvqixcmKnHR?usp=sharing
exploit, web
vuldb.com /vuln/358436
vdb-entry, web
vuldb.com /vuln/358436/cti
signature, permissions-required, web
vuldb.com /submit/794681
third-party-advisory, web
nvd.nist.gov /vuln/detail/CVE-2026-6745
advisory
github.com /bagisto/bagisto
package

Sources

CVE List CVE-2026-6745
GitHub Advisory GHSA-65fp-7g2v-658r
NVD CVE-2026-6745

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