CVE-2021-26540

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Source
https://cve.org/CVERecord?id=CVE-2021-26540
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26540.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-26540
Aliases
Downstream
Published
2021-02-08T17:15:13Z
Modified
2026-08-07T15:15:22Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the "allowedIframeHostnames" option when the "allowIframeRelativeUrls" is set to true, which allows attackers to bypass hostname whitelist for iframe element, related using an src value that starts with "/\example.com".

References

Affected packages

Git / github.com/apostrophecms/apostrophe

Affected ranges

Type
GIT
Repo
https://github.com/apostrophecms/apostrophe
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3c481712824998a154d9b1bd50cf22fa70621461
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.3.2"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

0.*
0.1.1
0.1.10
0.1.11
0.1.12
0.1.13
0.1.14
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.1.7
0.1.8
0.1.9
0.2.0
0.3.0
0.3.1
0.3.10
0.3.11
0.3.12
0.3.15
0.3.16
0.3.18
0.3.19
0.3.2
0.3.3
0.3.4
0.3.5
0.3.6
0.3.7
0.3.8
0.3.9
0.4.1
0.4.10
0.4.100
0.4.101
0.4.102
0.4.104
0.4.11
0.4.110
0.4.111
0.4.112
0.4.113
0.4.114
0.4.115
0.4.116
0.4.117
0.4.118
0.4.119
0.4.12
0.4.120
0.4.121
0.4.122
0.4.123
0.4.124
0.4.125
0.4.13
0.4.14
0.4.15
0.4.16
0.4.18
0.4.184
0.4.19
0.4.2
0.4.20
0.4.21
0.4.22
0.4.23
0.4.24
0.4.25
0.4.26
0.4.27
0.4.28
0.4.29
0.4.3
0.4.30
0.4.31
0.4.32
0.4.33
0.4.34
0.4.35
0.4.37
0.4.4
0.4.40
0.4.41
0.4.42
0.4.43
0.4.44
0.4.45
0.4.46
0.4.47
0.4.5
0.4.51
0.4.52
0.4.53
0.4.54
0.4.55
0.4.57
0.4.58
0.4.59
0.4.6
0.4.60
0.4.61
0.4.62
0.4.63
0.4.64
0.4.65
0.4.66
0.4.67
0.4.68
0.4.69
0.4.7
0.4.70
0.4.71
0.4.72
0.4.73
0.4.74
0.4.75
0.4.8
0.4.82
0.4.83
0.4.84
0.4.85
0.4.86
0.4.87
0.4.88
0.4.89
0.4.90
0.4.91
0.4.92
0.4.93
0.4.94
0.4.95
0.4.96
0.4.97
0.4.98
0.4.99
0.5.0
0.5.1
0.5.10
0.5.100
0.5.102
0.5.103
0.5.104
0.5.106
0.5.107
0.5.108
0.5.109
0.5.111
0.5.113
0.5.115
0.5.116
0.5.117
0.5.12
0.5.120
0.5.121
0.5.124
0.5.125
0.5.126
0.5.127
0.5.128
0.5.13
0.5.130
0.5.131
0.5.133
0.5.134
0.5.135
0.5.136
0.5.138
0.5.14
0.5.141
0.5.142
0.5.143
0.5.144
0.5.145
0.5.146
0.5.148
0.5.149
0.5.150
0.5.151
0.5.155
0.5.156
0.5.157
0.5.158
0.5.159
0.5.16
0.5.165
0.5.167
0.5.168
0.5.169
0.5.17
0.5.178
0.5.179
0.5.180
0.5.181
0.5.183
0.5.187
0.5.188
0.5.189
0.5.19
0.5.190
0.5.191
0.5.192
0.5.193
0.5.194
0.5.197
0.5.198
0.5.199
0.5.2
0.5.20
0.5.201
0.5.202
0.5.203
0.5.204
0.5.205
0.5.206
0.5.207
0.5.208
0.5.21
0.5.213
0.5.215
0.5.216
0.5.217
0.5.218
0.5.219
0.5.22
0.5.221
0.5.222
0.5.223
0.5.224
0.5.226
0.5.227
0.5.228
0.5.229
0.5.23
0.5.230
0.5.24
0.5.240
0.5.241
0.5.242
0.5.244
0.5.245
0.5.246
0.5.247
0.5.248
0.5.249
0.5.25
0.5.250
0.5.251
0.5.252
0.5.253
0.5.254
0.5.26
0.5.269
0.5.27
0.5.270
0.5.271
0.5.272
0.5.273
0.5.275
0.5.276
0.5.278
0.5.279
0.5.28
0.5.280
0.5.281
0.5.282
0.5.283
0.5.284
0.5.285
0.5.286
0.5.287
0.5.288
0.5.29
0.5.290
0.5.291
0.5.292
0.5.293
0.5.294
0.5.296
0.5.297
0.5.298
0.5.3
0.5.30
0.5.300
0.5.301
0.5.302
0.5.303
0.5.305
0.5.307
0.5.308
0.5.309
0.5.31
0.5.310
0.5.311
0.5.312
0.5.32
0.5.327
0.5.328
0.5.33
0.5.330
0.5.331
0.5.332
0.5.333
0.5.336
0.5.337
0.5.338
0.5.339
0.5.34
0.5.340
0.5.343
0.5.344
0.5.345
0.5.346
0.5.347
0.5.348
0.5.349
0.5.35
0.5.350
0.5.351
0.5.352
0.5.353
0.5.354
0.5.355
0.5.356
0.5.357
0.5.358
0.5.359
0.5.36
0.5.360
0.5.361
0.5.362
0.5.363
0.5.364
0.5.365
0.5.366
0.5.367
0.5.368
0.5.369
0.5.37
0.5.370
0.5.371
0.5.372
0.5.373
0.5.374
0.5.375
0.5.376
0.5.377
0.5.378
0.5.379
0.5.38
0.5.380
0.5.381
0.5.382
0.5.383
0.5.384
0.5.39
0.5.4
0.5.40
0.5.43
0.5.44
0.5.45
0.5.47
0.5.48
0.5.5
0.5.50
0.5.51
0.5.52
0.5.55
0.5.56
0.5.57
0.5.58
0.5.59
0.5.6
0.5.60
0.5.61
0.5.63
0.5.64
0.5.65
0.5.67
0.5.68
0.5.69
0.5.7
0.5.70
0.5.71
0.5.75
0.5.76
0.5.77
0.5.78
0.5.79
0.5.8
0.5.82
0.5.84
0.5.85
0.5.86
0.5.88
0.5.89
0.5.9
0.5.90
0.5.91
0.5.92
0.5.93
0.5.94
0.5.95
0.5.96
0.5.97
0.5.98
0.5.99
2.*
2.0.1
2.0.2
2.0.3
2.0.4
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.2.0
2.2.1
2.2.2
2.3.0
v0.*
v0.4.68

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26540.json"

Git / github.com/apostrophecms/sanitize-html

Affected ranges

Type
GIT
Repo
https://github.com/apostrophecms/sanitize-html
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
fd3cb540d1b46855cb01825e6b17cabbc4f514fb
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.3.2"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

1.*
1.10.1
1.11.0
1.11.1
1.11.4
1.18.2
1.18.3
1.18.4
1.18.5
1.19.0
1.19.1
1.19.2
1.19.3
1.20.0
1.21.0
1.21.1
1.22.0
1.27.4
2.*
2.0.0
2.1.0
2.1.1
2.1.2
2.2.0
2.3.0
2.3.1
v1.*
v1.5.2
v1.7.0
v1.7.1
v1.7.2
v1.8.0
v1.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26540.json"