VISAM VBASE Editor Cross Site Scripting

published 2022-07-27 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29504

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits: 0; none known

VISAM VBASE version 11.6.0.6 does not neutralize or incorrectly neutralizes user-controllable input before the data is placed in output used as a public-facing webpage.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-308-01 updated 2021-11-04 cvss 5.3

VISAM VBASE Editor

VISAM VBASE Pro-RT/ Server-RT (Web Remote) 11.6.0.6
affected: mitigation “VISAM recommends users update to VBASE v11.7.0.2 or later. Users may obtain a download link by submitting a request form.” vbase.net

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 18 mo ago (2025-04-17)

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

VISAM VBASE Pro-RT/ Server-RT (Web Remote)

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

cisa.gov /uscert/ics/advisories/icsa-21-308-01
third-party-advisory, us-government-resource

Sources

CVE List CVE-2021-42535
NVD CVE-2021-42535

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