CVE-2017-1000426 json
MapProxy vulnerable to cross-site scripting in demo service
published 2018-01-02 8 y ago modified 2026-07-07 4 mo ago also GHSA-g4rw-82hq-8jpr , PYSEC-2026-841 , EUVD-2022-3888
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
MapProxy version 1.10.3 and older is vulnerable to a Cross Site Scripting attack in the demo service resulting in possible information disclosure.
Patch / fix
- pypi mapproxy 1.11.1
- mapproxy Debian 14, Debian 13, Debian 12 1.10.4-1
debian advisories DEBIAN-CVE-2017-1000426
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/mapproxy/mapproxy/issues/322 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | mapproxy | <1.11.1 |
1.11.1 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/mapproxy/mapproxy/issues/322
web, exploit, issue-tracking, mitigation, patch, third-party-advisory
-
github.com
/mapproxy/mapproxy/commit/420412aad45171e05752007a0a2350c03c28dfd8
web
-
github.com
/mapproxy/mapproxy/commit/436c8f489761d1b4ee22b2440b53cc96bbc28aea
web
-
nvd.nist.gov
/vuln/detail/CVE-2017-1000426
advisory
-
github.com
/mapproxy/mapproxy
package
-
pypi.org
/project/mapproxy
package
-
github.com
/advisories/GHSA-g4rw-82hq-8jpr
advisory
Sources
- CVE List CVE-2017-1000426
- GitHub Advisory GHSA-g4rw-82hq-8jpr
- NVD CVE-2017-1000426
- OSV PYSEC-2026-841
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.