CVE Explorer
CVE-2026-34206
Captcha Protect is a Traefik middleware to add an anti-bot challenge to individual IPs in a subnet when traffic spikes are detected from that subnet. Prior to version 1.12.2, a reflected cross-site scripting (XSS) vulnerability exists in github.com/libops/captcha-protect. The challenge page accepted a client-supplied destination value and rendered it into HTML using Go's text/template. Because text/template does not perform contextual HTML escaping, an attacker could supply a crafted destination
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"captcha-protect","vendor":"libops","versions":[{"status":"affected","version":"< 1.12.2"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ebc7a1800eb111781ec85992f53b5200d2912a58ef35cf4ba5e6454a87c18946 · sha256:c42028ec6547be85… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ebc7a1800eb111781ec85992f53b5200d2912a58ef35cf4ba5e6454a87c18946 · sha256:c42028ec6547be85… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ebc7a1800eb111781ec85992f53b5200d2912a58ef35cf4ba5e6454a87c18946 · sha256:c42028ec6547be85… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"name":"https://github.com/libops/captcha-protect/commit/eef6211ecd1147273be484d913b81c68c0bd8d3f","tags":["x_refsource_MISC"],"url":"https://github.com/libops/captcha-protect/commit/eef6211ecd1147273be484d913b81c68c0bd8d3f"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ebc7a1800eb111781ec85992f53b5200d2912a58ef35cf4ba5e6454a87c18946 · sha256:c42028ec6547be85… · /containers/cna/references/1
{"name":"https://github.com/libops/captcha-protect/releases/tag/v1.12.2","tags":["x_refsource_MISC"],"url":"https://github.com/libops/captcha-protect/releases/tag/v1.12.2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ebc7a1800eb111781ec85992f53b5200d2912a58ef35cf4ba5e6454a87c18946 · sha256:c42028ec6547be85… · /containers/cna/references/2
{"name":"https://github.com/libops/captcha-protect/security/advisories/GHSA-ph62-4j5g-2q4r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/libops/captcha-protect/security/advisories/GHSA-ph62-4j5g-2q4r"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ebc7a1800eb111781ec85992f53b5200d2912a58ef35cf4ba5e6454a87c18946 · sha256:c42028ec6547be85… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.